更新日志

对绑定的扩展的函数有以下更新。

VersionFunctionDescription
Since 5.0cal_info参数calendar作为可选项,缺省时默认值为"所有历法"。
Since 4.3.0easter_dateyear参数可选,缺省的默认值是当年。
 easter_days引入参数 method。
 easter_days参数year 可选,缺省默认值是当年。
Since 4.2.0srandseed 成为可选,省略时会默认使用随机值。
Prior to 5.1.3imagecolorallocatealphaReturns -1 if the allocation failed.
PHP 7.0.15, PHP 7.1.1get_defined_functions增加 exclude_disabled 参数。
PHP 5.3.2 (PECL OCI8 1.4)oci_set_prefetchBefore this release, rows must be >= 1.
PHP 5.3 (PECL OCI8 1.3.4)oci_set_prefetchBefore this release, prefetching was limited to the lesser of rows rows and 1024 * rows bytes. The byte size restriction has now been removed.
PECL 3.0.0IntlDateFormatter::formatSupport for providing IntlCalendar objects to the datetime parameter was added.
8.2.0DateInterval::__constructOnly the y to f, invert, and days will be visible, including a new from_string boolean property.
 DateInterval::createFromDateStringOnly the from_string and date_string properties will be visible when a DateInterval is created with this method.
 DatePeriod::__constructThe DatePeriod::INCLUDE_END_DATE constant has been added.
 DateTimeInterface::format新增 X 和 x 格式化字符。
 DateTimeImmutable::createFromFormatThe X and x format specifiers have been added.
 idate添加 N(ISO-8601 格式的周几)和 o(ISO-8601 格式的年份)格式字符。
 random_bytesIn case of a CSPRNG failure, this function will now throw a \Random\RandomException. Previously a plain \Exception was thrown.
 random_intIn case of a CSPRNG failure, this function will now throw a \Random\RandomException. Previously a plain \Exception was thrown.
 utf8_decodeThis function has been deprecated.
 utf8_encodeThis function has been deprecated.
8.1.0DateTime::setTimeThe behaviour with double existing hours (during the fall-back DST transition) changed. Previously PHP would pick the second occurrence (after the DST transition), instead of the first occurrence (before DST transition).
 DateTimeImmutable::setTimeThe behaviour with double existing hours (during the fall-back DST transition) changed. Previously PHP would pick the second occurrence (after the DST transition), instead of the first occurrence (before DST transition).
 DirectoryIterator::keyWhen the iterator is uninitialized, an Error is thrown now. Previously, the method returned false.
 DOMDocument::createCommentIn case of an error, a DomException is thrown now. Previously, false was returned.
 DOMDocument::createDocumentFragmentIn case of an error, a DomException is thrown now. Previously, false was returned.
 DOMDocument::createTextNodeIn case of an error, a DomException is thrown now. Previously, false was returned.
 current弃用在 object 上调用此函数。 在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
 date_sunrise此函数已弃用,请改用 date_sun_info。
 date_sunset此函数已弃用,请改用 date_sun_info。
 end弃用在 object 上调用此函数。 在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
 fputcsv新增可选的 eol 参数。
 html_entity_decodeflags changed from ENT_COMPAT to ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401.
 imageopenpolygonThe parameter num_points has been deprecated.
 key弃用在 object 上调用此函数。 在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
 ldap_add现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_add_ext现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_add_extReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_bind_extReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_bind_ext现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_compare现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_connectReturns an LDAP\Connection instance now; previously, a 资源(resource) was returned.
 ldap_count_entries现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_count_entriesThe result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
 ldap_count_referencesThe result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
 ldap_count_references现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_delete现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_delete_ext现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_delete_extReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_errno现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_error现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_exop现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_exop_passwd现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_exop_refresh现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_exop_whoami现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_first_attributeThe entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
 ldap_first_attribute现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_first_entry现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_first_entryReturns an LDAP\ResultEntry instance now; previously, a 资源(resource) was returned.
 ldap_first_entryThe result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
 ldap_free_resultThe result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
 ldap_get_attributes现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_get_attributesThe entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
 ldap_get_dn现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_get_dnThe entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
 ldap_get_entriesThe result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
 ldap_get_entries现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_get_option现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_get_values现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_get_valuesThe entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
 ldap_get_values_len现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_get_values_lenThe entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
 ldap_list现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_listReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_mod_add现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_mod_del现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_mod_replace现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_modify_batch现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_mod_add_extReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_mod_add_ext现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_mod_del_ext现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_mod_del_extReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_mod_replace_ext现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_mod_replace_extReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_next_attribute现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_next_attributeThe entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
 ldap_next_entryReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_next_entry现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_next_entryThe entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
 ldap_parse_exop现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_parse_exopThe result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
 ldap_parse_resultThe result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
 ldap_parse_result现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_readReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_read现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_rename现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_rename_extReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_rename_ext现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_sasl_bind现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_search现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_searchReturns an LDAP\Result instance now; previously, a 资源(resource) was returned.
 ldap_set_option现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_set_rebind_proc现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 ldap_unbind现在 ldap 参数接受 LDAP\Connection 实例,之前接受 资源(resource)。
 mhashThis function has been deprecated. Use the hash_*() functions instead.
 mhash_countThis function has been deprecated. Use the hash_*() functions instead.
 mhash_get_block_sizeThis function has been deprecated. Use the hash_*() functions instead.
 mhash_get_hash_nameThis function has been deprecated. Use the hash_*() functions instead.
 mhash_keygen_s2kThis function has been deprecated. Use the hash_*() functions instead.
 next弃用在 object 上调用此函数。 在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
 odbc_result_allThis function has been deprecated.
 openssl_cms_encryptThe default cipher algorithm (cipher_algo) is now AES-128-CBC (OPENSSL_CIPHER_AES_128_CBC). Previously, PKCS7/CMS was used (OPENSSL_CIPHER_RC2_40).
 pg_consume_input现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_escape_identifier现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_escape_literal现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_execute现在返回 PgSql\Result 实例,之前返回 资源(resource)
 pg_execute现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_fetch_all_columns现在 result 参数接受 PgSql\Result 实例,之前接受 资源(resource)。
 pg_field_table现在 result 参数接受 PgSql\Result 实例,之前接受 资源(resource)。
 pg_field_type_oid现在 result 参数接受 PgSql\Result 实例,之前接受 资源(resource)。
 pg_lo_truncate现在 lob 接受 PgSql\Lob 实例,之前接受 资源(resource)。
 pg_parameter_status现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_prepare现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_prepare现在返回 PgSql\Result 实例,之前返回 资源(resource)
 pg_query_params现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_query_params现在返回 PgSql\Result 实例,之前返回 资源(resource)
 pg_result_error_field现在 result 参数接受 PgSql\Result 实例,之前接受 资源(resource)。
 pg_send_execute现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_send_prepare现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_send_query_params现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_set_error_verbosity现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_socket现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_transaction_status现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 pg_version现在 connection 参数接受 PgSql\Connection 实例,之前接受 资源(resource)。
 prev弃用在 object 上调用此函数。 在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
 pspell_add_to_personalThe dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
 pspell_add_to_sessionThe dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
 pspell_checkThe dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
 pspell_clear_sessionThe dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
 pspell_config_createReturns an PSpell\Config instance now; previously, a 资源(resource) was returned.
 pspell_config_data_dirThe config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
 pspell_config_dict_dirThe config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
 pspell_config_ignoreThe config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
 pspell_config_modeThe config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
 pspell_config_personalThe config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
 pspell_config_replThe config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
 pspell_config_runtogetherThe config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
 pspell_config_save_replThe config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
 pspell_newReturns an PSpell\Dictionary instance now; previously, a 资源(resource) was returned.
 pspell_new_configThe config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
 pspell_new_configReturns an PSpell\Dictionary instance now; previously, a 资源(resource) was returned.
 pspell_new_personalReturns an PSpell\Dictionary instance now; previously, a 资源(resource) was returned.
 pspell_save_wordlistThe dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
 pspell_store_replacementThe dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
 pspell_suggestThe dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
 reset弃用在 object 上调用此函数。 在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
 snmp3_getThe auth_protocol now accepts "SHA256" and "SHA512" when supported by libnetsnmp.
 snmp3_getnextThe auth_protocol now accepts "SHA256" and "SHA512" when supported by libnetsnmp.
 snmp3_real_walkThe auth_protocol now accepts "SHA256" and "SHA512" when supported by libnetsnmp.
 snmp3_walkThe auth_protocol now accepts "SHA256" and "SHA512" when supported by libnetsnmp.
 stream_selectmicroseconds is now nullable.
 strptime此函数已弃用。改用 date_parse_from_format(用于单独区域设置解析)或者 IntlDateFormatter::parse(用于依赖区域设置解析)
 MultipleIterator::currentA RuntimeException is now thrown if MultipleIterator::current is called on an invalid iterator. Previously, false was returned.
 MultipleIterator::keyA RuntimeException is now thrown if MultipleIterator::key is called on an invalid iterator. Previously, false was returned.
 Phar::buildFromDirectoryPhar::buildFromDirectory no longer returns false.
 Phar::buildFromIteratorPhar::buildFromIterator no longer returns false.
 PharData::buildFromDirectoryPharData::buildFromDirectory no longer returns false.
 PharData::buildFromIteratorPharData::buildFromIterator no longer returns false.
 ReflectionClassConstant::getNameThrows an Error in case the name property has not been initialized. Previously, the method returned false on failure.
 ReflectionParameter::__cloneThis method is no longer final.
 ReflectionProperty::__cloneThis method is no longer final.
 ReflectionProperty::getValuePrivate and protected properties can be accessed by ReflectionProperty::getValue right away. Previously, they needed to be made accessible by calling ReflectionProperty::setAccessible; otherwise a ReflectionException was thrown.
 ReflectionProperty::setValuePrivate and protected properties can be accessed by ReflectionProperty::setValue right away. Previously, they needed to be made accessible by calling ReflectionProperty::setAccessible; otherwise a ReflectionException was thrown.
 ReflectionZendExtension::__cloneThis method is no longer final.
 SplFileObject::fputcsvThe optional eol parameter has been added.
 SplObjectStorage::currentSplObjectStorage::current now throws an Error exception if the current position is invalid. Previously, false was returned instead.
8.0.3DOMDocument::getElementsByTagNameNSnamespace is nullable now.
 DOMElement::getElementsByTagNameNSnamespace is nullable now.
 DOMImplementation::createDocumentnamespace is now nullable.
 finfo::__constructmagic_database is nullable now.
 bind_textdomain_codesetcodeset is nullable now. Previously, it was not possible to retrieve the currently set encoding.
 bindtextdomaindirectory is nullable now. Previously, it was not possible to retrieve the currently set directory.
 SoapClient::__setLocationlocation is nullable now.
 SoapVar::__constructtypeName, typeNamespace, nodeName,and nodeNamespace are nullable now.
8.0.0, PECL OCI8 3.0.0oci_lob_copylength is now nullable.
 OCICollection::appendThe OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
 OCICollection::assignThe OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
 OCICollection::assignElemThe OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
 OCICollection::freeThe OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
 OCICollection::getElemThe OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
 OCICollection::maxThe OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
 OCICollection::sizeThe OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
 OCICollection::trimThe OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
 OCILob::appendThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::closeThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::eofThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::eraseoffset and length are now nullable.
 OCILob::eraseThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::exportoffset and length are now nullable.
 OCILob::exportThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::flushThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::freeThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::getBufferingThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::importThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::loadThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::readThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::rewindThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::saveThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::saveFileThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::seekThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::setBufferingThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::sizeThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::tellThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::truncateThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::writeThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::writelength is now nullable.
 OCILob::writeTemporaryThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
 OCILob::writeToFileoffset and length are now nullable.
 OCILob::writeToFileThe OCI-Lob class was renamed to OCILob to align with PHP naming standards.
8.0.0DateInterval::__constructW can be combined with D.
 DateTimeInterface::format新增 p 格式化字符。
 DateTimeInterface::format之前的版本,失败时返回 false。
 DateTimeInterface::getOffsetPrior to this version, false was returned on failure.
 DateTimeInterface::getTimestampThese functions no longer return false on failure.
 DateTimeZone::getOffset在此之前的版本,失败时返回 false。
 DateTimeZone::listIdentifiers在此版本之前,失败时返回 false。
 Directory::close不接受任何参数。在此之前,目录句柄可以作为参数传递。
 Directory::read不接受任何参数。在此之前,目录句柄可以作为参数传递。
 Directory::rewind不接受任何参数。在此之前,目录句柄可以作为参数传递。
 DirectoryIterator::__constructNow throws a ValueError if directory is an empty string; previously it threw a RuntimeException.
 DOMImplementation::createDocumentdoctype is now nullable.
 FFI::cdeflib is nullable now.
 FFI::stringsize is nullable now; previously, its default was 0.
 FilesystemIterator::__constructNow throws a ValueError if directory is an empty string; previously it threw a RuntimeException.
 apache_note现在 note_value 可为 null。
 array_chunk如果 length 小于 1,现在会抛出 ValueError;之前会引发 E_WARNING 级别的错误且函数会返回 null。
 array_columnindex_key 参数指定的列中的对象不再强制转换为字符串,而是会抛出 TypeError。
 array_combine如果每个数组的元素数量不相等,现在 array_combine 将会抛出 ValueError,之前此方法返回 false。
 array_diff现在可以仅使用一个参数调用此函数。以前,至少需要两个参数。
 array_diff_assoc现在可以仅使用一个参数调用此函数。以前,至少需要两个参数。
 array_diff_key现在可以仅使用一个参数调用此函数。以前,至少需要两个参数。
 array_fill如果 array_fill 的 count 超出范围现在将会抛出 ValueError, 之前会引发 E_WARNING 且函数返回 false。
 array_filtercallback 现在可为空(nullable)。
 array_filter如果 callback 接受引用传递参数,该方法将会抛出 E_WARNING。
 array_intersect现在可以仅使用一个参数调用此函数。以前,至少需要两个参数。
 array_intersect_assoc现在可以仅使用一个参数调用此函数。以前,至少需要两个参数。
 array_intersect_key现在可以仅使用一个参数调用此函数。以前,至少需要两个参数。
 array_map如果 callback 接受引用传递参数,该方法将会抛出 E_WARNING。
 array_reduce如果 callback 接受引用传递参数,该方法将会抛出 E_WARNING。
 array_splicelength 现在可为空(nullable)。
 array_walk如果 callback 期待通过引用传递第二个和第三个参数, 此函数现在将抛出 E_WARNING。
 bcadd现在 scale 可以为 null。
 bccomp现在 scale 可以为 null。
 bcdiv现在 scale 可以为 null。
 bcmod现在 scale 可以为 null。
 bcmul现在 scale 可以为 null。
 bcpowmodscale is now nullable.
 bcscale现在 scale 可以为 null。
 bcsqrt现在 scale 可以为 null。
 bcsub现在 scale 可以为 null。
 bzdecompressuse_less_memory 的类型从 int 变为 bool。 之前默认值为 0。
 bzwritelength 现在可为空(nullable)。
 call_user_func_arrayargs 键现在将被解释为参数名称,而不是被默默地忽略。
 com_event_sinksink_interface is nullable now.
 com_get_active_objectcodepage is nullable now.
 constant如果常量未定义,constant 现在会抛出 Error 异常。以前会产生一个 E_WARNING 级别的错误并返回 null。
 count当 value 参数传入了无效的 countable 类型, count 现在会抛出 TypeError。
 cryptsalt不再可选。
 date现在 timestamp 允许为 null。
 date_sunriselatitude, longitude, zenith and utcOffset are nullable now.
 date_sunsetlatitude, longitude, zenith and utcOffset are nullable now.
 deflate_addcontext expects a DeflateContext instance now; previously, a resource was expected.
 deflate_initOn success, this function returns a DeflateContext instance now; previously, a resource was returned.
 dircontext 现在可为空(nullable)。
 dom_import_simplexmlThis function no longer returns null on failure.
 enchant_broker_describebroker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
 enchant_broker_describePrior to this version, the function returned false on failure.
 enchant_broker_dict_existsbroker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
 enchant_broker_freebroker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
 enchant_broker_free_dictdictionary expects a EnchantDictionary now; previoulsy, a 资源(resource) was expected.
 enchant_broker_get_dict_pathbroker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
 enchant_broker_get_errorbroker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
 enchant_broker_initOn success, this function returns an EnchantBroker instance now; previoulsy, a 资源(resource) was retured.
 enchant_broker_list_dictsbroker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
 enchant_broker_list_dictsPrior to this version, the function returned false on failure.
 enchant_broker_request_dictbroker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
 enchant_broker_request_dictOn success, this function returns an EnchantDictionary instance now; previoulsy, a 资源(resource) was retured.
 enchant_broker_request_pwl_dictbroker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
 enchant_broker_request_pwl_dictOn success, this function returns an EnchantDictionary instance now; previoulsy, a 资源(resource) was retured.
 enchant_broker_set_dict_pathbroker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
 enchant_broker_set_orderingbroker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
 enchant_dict_adddictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
 enchant_dict_add_to_sessiondictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
 enchant_dict_checkdictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
 enchant_dict_describePrior to this version, the function returned false on failure.
 enchant_dict_describedictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
 enchant_dict_get_errordictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
 enchant_dict_is_addeddictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
 enchant_dict_quick_checkdictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
 enchant_dict_store_replacementdictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
 enchant_dict_suggestdictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
 error_log现在 destination 和 additional_headers 允许为 null。
 error_reportingerror_level 现在可以为空。
 exif_read_datarequired_sections 现在可以为空。
 fgetcsv现在 length 允许为 null.
 file_get_contents现在 length 允许为 null。
 fwrite现在 length 可以为 null。
 get_class在类外不带任何参数调用此函数将会触发 Error。之前会引发 E_WARNING 并且函数会返回 false。
 get_class_methodsobject_or_class 参数现在只接受对象或者有效的类名。
 get_parent_classobject_or_class 参数现在仅接受对象或者有效的类名。
 get_resourcestype is nullable now.
 getdate现在 timestamp 允许为 null。
 gmdate现在 timestamp 允许为 null。
 gmmktime现在 minute、second、month、day 和 year 可以为 null。
 gmmktimehour 不再可选。
 gmp_binomialThis function no longer returns false on failure.
 gmp_exportThis function no longer returns false on failure.
 gmp_importThis function no longer returns false on failure.
 gmstrftime现在 timestamp 允许为 null。
 grapheme_substrThe function now consistently clamps out-of-bounds offsets to the string boundary. Previously, false was returned instead of the empty string in some cases.
 gzgetslength is nullable now; previously, the default was 1024.
 gzwritelength is nullable now; previously, the default was 0.
 html_entity_decodeencoding is nullable now.
 iconv_strposencoding is nullable now.
 iconv_strrposencoding is nullable now.
 idate现在 timestamp 允许为 null。
 imagebmpimage expects a GdImage instance now; previously, a resource was expected.
 imagebmpThe type of compressed is bool now; formerly it was int.
 imagecreatefrombmpOn success, this function returns a GDImage instance now; previously, a resource was returned.
 imagecreatefromtgaOn success, this function returns a GDImage instance now; previously, a 资源(resource) was returned.
 imagecropimage expects a GdImage instance now; previously, a resource was expected.
 imagecropOn success, this function returns a GDImage instance now; previously, a resource was returned.
 imagecropautoimage expects a GdImage instance now; previously, a resource was expected.
 imagecropautoOn success, this function returns a GDImage instance now; previously, a resource was returned.
 imageflipimage expects a GdImage instance now; previously, a resource was expected.
 imagegetclipimage expects a GdImage instance now; previously, a resource was expected.
 imagegetinterpolationimage expects a GdImage instance now; previously, a resource was expected.
 imagegrabscreenOn success, this function returns a GDImage instance now; previously, a resource was returned.
 imagegrabwindowclient_area expects a bool now; previously it expected an int.
 imagegrabwindowOn success, this function returns a GDImage instance now; previously, a resource was returned.
 imageopenpolygonimage expects a GdImage instance now; previously, a resource was expected.
 imagepalettetotruecolorimage expects a GdImage instance now; previously, a resource was expected.
 imageresolutionresolution_x and resolution_y are now nullable.
 imagescaleOn success, this function returns a GDImage instance now; previously, a resource was returned.
 imagescaleimage expects a GdImage instance now; previously, a resource was expected.
 imagesetclipimage expects a GdImage instance now; previously, a resource was expected.
 imagesetinterpolationimage expects a GdImage instance now; previously, a resource was expected.
 implode在 array 之后传递 separator 已不再支持。
 inflate_addcontext expects an InflateContext instance now; previously, a resource was expected.
 inflate_get_read_lencontext expects an InflateContext instance now; previously, a resource was expected.
 inflate_get_statuscontext expects an InflateContext instance now; previously, a resource was expected.
 inflate_initOn success, this function returns an InflateContext instance now; previously, a resource was returned.
 is_numeric以空格结尾的数字字符串("42 ")现在将返回 true。以前,会返回 false。
 ldap_addcontrols is nullable now; previously, it defaulted to [].
 ldap_add_extcontrols is nullable now; previously, it defaulted to [].
 ldap_bind_extcontrols is nullable now; previously, it defaulted to [].
 ldap_comparecontrols is nullable now; previously, it defaulted to [].
 ldap_control_paged_resultThis function has been removed.
 ldap_control_paged_result_responseThis function has been removed.
 ldap_deletecontrols is nullable now; previously, it defaulted to [].
 ldap_delete_extcontrols is nullable now; previously, it defaulted to [].
 ldap_exop_passwdcontrols is nullable now; previously, it defaulted to [].
 ldap_listcontrols is nullable now; previously, it defaulted to [].
 ldap_mod_addcontrols is nullable now; previously, it defaulted to [].
 ldap_mod_delcontrols is nullable now; previously, it defaulted to [].
 ldap_mod_replacecontrols is nullable now; previously, it defaulted to [].
 ldap_modify_batchcontrols is nullable now; previously, it defaulted to [].
 ldap_mod_add_extcontrols is nullable now; previously, it defaulted to [].
 ldap_mod_del_extcontrols is nullable now; previously, it defaulted to [].
 ldap_mod_replace_extcontrols is nullable now; previously, it defaulted to [].
 ldap_readcontrols is nullable now; previously, it defaulted to [].
 ldap_renamecontrols is nullable now; previously, it defaulted to [].
 ldap_rename_extcontrols is nullable now; previously, it defaulted to [].
 ldap_sasl_binddn, password, mech, realm, authc_id, authz_id and props are nullable now.
 ldap_searchcontrols is nullable now; previously, it defaulted to [].
 ldap_set_rebind_proccallback is nullable now.
 ldap_sortThis function has been removed.
 libxml_use_internal_errorsuse_errors is nullable now. Previously, its default was false.
 localtime现在 timestamp 可为 null。
 mb_chr现在 encoding 可以为 null。
 mb_convert_encoding现在,当 to_encoding 为无效编码时, mb_convert_encoding 会抛出 ValueError。
 mb_convert_encoding现在 from_encoding 可以传入 null。
 mb_convert_encoding现在,当 from_encoding 为无效编码时, mb_convert_encoding 会抛出 ValueError。
 mb_convert_kana现在 encoding 可以为 null。
 mb_encode_mimeheadercharset 和 transfer_encoding 现在可以为空。
 mb_encode_numericentity现在 encoding 可以为 null。
 mb_eregThis function returns true on success now. Previously, it returned the byte length of the matched string if a match for pattern was found in string and matches was passed. If the optional parameter matches was not passed or the length of the matched string was 0, this function returned 1.
 mb_ereg_matchoptions is nullable now.
 mb_ereg_replaceoptions is nullable now.
 mb_ereg_replace_callbackoptions is nullable now.
 mb_ereg_searchpattern and options are nullable now.
 mb_ereg_search_initpattern and options are nullable now.
 mb_ereg_search_pospattern and options are nullable now.
 mb_ereg_search_regspattern and options are nullable now.
 mb_eregiThis function returns true on success now. Previously, it returned the byte length of the matched string if a match for pattern was found in string and matches was passed. If the optional parameter matches was not passed or the length of the matched string was 0, this function returned 1.
 mb_eregi_replaceoptions is nullable now.
 mb_get_info参数 type 中的 "func_overload" 和 "func_overload_list" 不再被支持。
 mb_ord现在 encoding 可以为 null。
 mb_regex_encoding现在 encoding 可以为 null。
 mb_regex_set_optionsIf the parameter options is given and not null, the previous options are returned. Formerly, the current options have been returned.
 mb_regex_set_optionsoptions is nullable now.
 mb_scrub现在 encoding 可以为 null。
 mb_str_split现在 encoding 可以为 null。
 mb_str_split此函数在失败时不再返回 false。
 metaphoneThe function returned false on failure.
 mhashkey is now nullable.
 mktimehour 不再可选。
 mktime现在 minute、second、month、day 和 year 允许为 null。
 msg_get_queueOn success, this function returns a SysvMessageQueue instance now; previously, a resource was returned.
 msg_receivequeue expects a SysvMessageQueue instance now; previously, a resource was expected.
 msg_remove_queuequeue expects a SysvMessageQueue instance now; previously, a resource was expected.
 msg_sendqueue expects a SysvMessageQueue instance now; previously, a resource was expected.
 msg_set_queuequeue expects a SysvMessageQueue instance now; previously, a resource was expected.
 msg_stat_queuequeue expects a SysvMessageQueue instance now; previously, a resource was expected.
 odbc_columnsschema, table and column are now nullable.
 odbc_errorodbc is nullable now.
 odbc_errormsgodbc is nullable now.
 odbc_execflags was removed.
 odbc_fetch_rowrow is nullable now.
 odbc_procedurecolumnsPrior to this version, the function could only be called with either one or five arguments.
 odbc_proceduresPrior to this version, the function could only be called with either one or four arguments.
 odbc_tablesschema, table and types are now nullable.
 opendir现在 context 允许为 null。
 openssl_pkey_new成功时此函数会返回 OpenSSLAsymmetricKey 的实例;在之前版本中,则会返回类似为 OpenSSL key 的 资源(resource)。
 openssl_signprivate_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a 资源(resource) of type OpenSSL key or OpenSSL X.509 was accepted.
 openssl_x509_verifycertificate accepts an OpenSSLCertificate instance now; previously, a 资源(resource) of type OpenSSL X.509 was accepted.
 openssl_x509_verifypublic_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a 资源(resource) of type OpenSSL key or OpenSSL X.509 was accepted.
 pack此函数不再在失败时返回 false 。
 parse_strresult 是必须项。
 password_hash参数 algo 可以为 null。
 password_hash失败时 password_hash 不再返回 false。
 pg_versionconnection is now nullable.
 readdir现在 dir_handle 可以为 null。
 rewinddir现在 dir_handle 允许为 null。
 sapi_windows_vt100_supportenable is now nullable.
 scandir现在 context 允许为 null。
 sem_acquiresemaphore expects a SysvSemaphore instance now; previously, a resource was expected.
 sem_getOn success, this function returns a SysvSemaphore instance now; previously, a resource was returned.
 sem_getThe type of auto_release has been changed from int to bool.
 sem_releasesemaphore expects a SysvSemaphore instance now; previously, a resource was expected.
 sem_removesemaphore expects a SysvSemaphore instance now; previously, a resource was expected.
 set_error_handler删除 errcontext 并不再传递给用户回调。
 shm_attachOn success, this function returns an SysvSharedMemory instance now; previously, a resource was returned.
 shm_attachsize is nullable now.
 shm_detachshm expects a SysvSharedMemory instance now; previously, a resource was expected.
 shm_get_varshm expects a SysvSharedMemory instance now; previously, a resource was expected.
 shm_has_varshm expects a SysvSharedMemory instance now; previously, a resource was expected.
 shm_put_varshm expects a SysvSharedMemory instance now; previously, a resource was expected.
 shm_removeshm expects a SysvSharedMemory instance now; previously, a resource was expected.
 shm_remove_varshm expects a SysvSharedMemory instance now; previously, a resource was expected.
 shmop_closeshmop expects a Shmop instance now; previously, a resource was expected.
 shmop_deleteshmop expects a Shmop instance now; previously, a resource was expected.
 shmop_openOn success, this function returns an Shmop instance now; previously, a resource was returned.
 shmop_readshmop expects a Shmop instance now; previously, a resource was expected.
 shmop_sizeshmop expects a Shmop instance now; previously, a resource was expected.
 shmop_writeshmop expects a Shmop instance now; previously, a resource was expected.
 shmop_writePrior to PHP 8.0.0, false was returned on failure.
 socket_accept成功时,该函数现在返回一个 Socket 实例;在此之前,返回值是一个 resource。
 socket_addrinfo_bind成功时,该函数现在返回一个 Socket 实例;在此之前,返回值是一个 resource。
 socket_addrinfo_bind现在 address 是 AddressInfo 实例, 之前是 resource。
 socket_addrinfo_connect现在该函数成功时返回 Socket 实例;在此之前,返回值是 resource。
 socket_addrinfo_connect现在 address 是 AddressInfo 实例, 之前是 resource。
 socket_addrinfo_explain现在 address 是 AddressInfo 实例, 之前是 resource。
 socket_addrinfo_lookupOn success, this function returns a array of AddressInfo instances now; previously, an array of resources was returned.
 socket_addrinfo_lookupservice is nullable now.
 socket_bind现在 socket 是 Socket 实例, 之前是 resource。
 socket_clear_error现在 socket 是 Socket 实例, 之前是 resource。
 socket_clear_error参数 socket 可以为 null。
 socket_close现在 socket 是 Socket 实例, 之前是 resource。
 socket_connect现在 socket 是 Socket 实例, 之前是 resource。
 socket_connectport 允许为空。
 socket_create创建成功时,该函数现在返回一个 Socket 实例; 在此之前,返回的是一个 resource。
 socket_create_listen成功时,该函数现在返回一个 Socket 实例;在此之前,返回值是一个 resource。
 socket_create_pairpair is a reference to an array of Socket instances now; previously, it was a reference to an array of resources.
 socket_export_stream现在 socket 是 Socket 实例, 之前是 resource。
 socket_get_option现在 socket 是 Socket 实例, 之前是 resource。
 socket_getpeername现在 socket 是 Socket 实例, 之前是 resource。
 socket_getsockname现在 socket 是 Socket 实例, 之前是 resource。
 socket_import_streamOn success, this function returns a Socket instance now; previously, a resource was returned.
 socket_last_error现在 socket 是 Socket 实例, 之前是 resource。
 socket_last_errorsocket 现在可为空(nullable)。
 socket_listen现在 socket 是 Socket 实例, 之前是 resource。
 socket_read现在 socket 是 Socket 实例, 之前是 resource。
 socket_recv现在 socket 是 Socket 实例, 之前是 resource。
 socket_recvfrom现在 socket 是 Socket 实例, 之前是 resource。
 socket_recvmsg现在 socket 是 Socket 实例, 之前是 resource。
 socket_send现在 socket 是 Socket 实例, 之前是 resource。
 socket_sendmsg现在 socket 是 Socket 实例, 之前是 resource。
 socket_sendto现在 socket 是 Socket 实例, 之前是 resource。
 socket_sendtoport is nullable now.
 socket_set_block现在 socket 是 Socket 实例, 之前是 resource。
 socket_set_nonblock现在 socket 是 Socket 实例, 之前是 resource。
 socket_set_option现在 socket 是 Socket 实例, 之前是 resource。
 socket_shutdown现在 socket 是 Socket 实例, 之前是 resource。
 socket_write现在 socket 是 Socket 实例, 之前是 resource。
 socket_writelength is nullable now.
 socket_wsaprotocol_info_export现在 socket 是 Socket 实例, 之前是 resource。
 socket_wsaprotocol_info_importOn success, this function returns a Socket instance now; previously, a resource was returned.
 soundexPrior to this version, calling the function with an empty string returned false for no particular reason.
 sprintf此函数失败时不再返回 false 。
 str_word_countcharacters 可为空(Nullable)类型。
 stream_context_create现在 options 和 params 可以为 null。
 stream_context_get_defaultoptions is now nullable.
 stream_copy_to_streamlength is now nullable.
 stream_get_contents现在 length 可以为 null。
 stream_socket_accept现在 timeout 可以为 null。
 stream_socket_clienttimeout and context are now nullable.
 stream_socket_enable_cryptosession_stream is now nullable.
 stream_socket_servercontext 现在可为 null。
 strftimetimestamp is nullable now.
 strtotime现在 baseTimestamp 允许为 null。
 substr现在 length 允许为 null。
 substr函数将返回一个空字符串, 在此之前返回 false 。
 substr_countlength 可以为空(nullable)。
 touchmtime 和 atime 现在可以为空。
 uasort如果 callback 接受引用传递参数,该方法将会抛出 E_WARNING。
 uksort如果 callback 接受引用传递参数,该方法将会抛出 E_WARNING。
 usort如果 callback 接受引用传递参数,该方法将会抛出 E_WARNING。
 vsprintf此函数失败时不再返回 false 。
 GlobIterator::__constructNow throws a ValueError if directory is an empty string; previously it threw a RuntimeException.
 IntlTimeZone::getIDForWindowsIDregion is now nullable.
 LimitIterator::__constructNow throws a ValueError if offset is less than 0; previously it threw a RuntimeException.
 LimitIterator::__constructNow throws a ValueError if limit is less than -1; previously it threw a RuntimeException.
 Locale::getDisplayLanguagedisplayLocale is nullable now.
 Locale::getDisplayNamedisplayLocale is nullable now.
 Locale::getDisplayRegiondisplayLocale is nullable now.
 Locale::getDisplayScriptdisplayLocale is nullable now.
 Locale::getDisplayVariantdisplayLocale is nullable now.
 NumberFormatter::createpattern is nullable now.
 Phar::addFilelocalName 现在可以为空。
 Phar::buildFromIteratorbaseDirectory is now nullable.
 Phar::compressextension is now nullable.
 Phar::convertToDataformat, compression, and extension are now nullable.
 Phar::convertToExecutableformat, compression, and localName are now nullable.
 Phar::createDefaultStubindex and webIndex are now nullable.
 Phar::decompressextension is now nullable.
 Phar::getMetadataThe parameter unserializeOptions has been added.
 Phar::setDefaultStubwebIndex is nullable now.
 Phar::setSignatureAlgorithmprivateKey is now nullable.
 Phar::webPharfileNotFoundScript, mimeTypes and rewrite are nullable now.
 PharData::addFilelocalName is now nullable.
 PharData::buildFromIteratorbaseDirectory is now nullable.
 PharData::compressextension is now nullable.
 PharData::convertToDataformat, compression, and extension are now nullable.
 PharData::convertToExecutableformat, compression, and localName are now nullable.
 PharData::decompressextension is now nullable.
 PharData::setDefaultStubwebIndex is nullable now.
 PharData::setSignatureAlgorithmprivateKey is now nullable.
 PharFileInfo::getMetadataThe parameter unserializeOptions has been added.
 PharFileInfo::isCompressedcompression is now nullable.
 RecursiveDirectoryIterator::__constructNow throws a ValueError if directory is an empty string; previously it threw a RuntimeException.
 RecursiveIteratorIterator::getSubIteratorlevel is now nullable.
 ReflectionClass::getConstants添加 filter 。
 ReflectionClass::getReflectionConstantsfilter has been added.
 ReflectionParameter::getDefaultValueThis method now allows getting the default value of parameters of built-in functions and built-in class methods. Previously, a ReflectionException was thrown.
 ReflectionParameter::getDefaultValueConstantNameThis method now allows getting the default values' constant names of built-in functions and built-in class methods. Previously, a ReflectionException was thrown.
 ReflectionProperty::getValueobject is nullable now.
 ReflectionProperty::isInitializedobject is nullable now.
 SimpleXMLElement::asXMLfilename is nullable now.
 SoapClient::__doRequestThe type of oneWay is bool now; formerly it was int.
 SoapClient::__setCookievalue is now nullable.
 SoapServer::handlerequest is now nullable.
 SplFileInfo::getFileInfoclass is now nullable.
 SplFileInfo::getPathInfoclass is now nullable.
 SplFileInfo::openFilecontext is now nullable.
 SplFixedArray::__constructNow throws a ValueError if size is a negative; previously it threw a InvalidArgumentException.
 tidy::__constructfilename, config, encoding and useIncludePath are nullable now.
 tidy::parseFileconfig and encoding are nullable now.
 tidy::parseStringconfig and encoding are nullable now.
 tidy::repairFileconfig and encoding are nullable now.
 tidy::repairFiletidy::repairFile is a static method now.
 tidy::repairStringThis function no longer accepts the useIncludePath parameter.
 tidy::repairStringconfig and encoding are nullable now.
 tidy::repairStringtidy::repairString is a static method now.
 XMLReader::getAttributeThis function can no longer return false.
 XMLReader::getAttributeNsThis function can no longer return false.
 XMLReader::lookupNamespaceThis function can no longer return false.
 XMLReader::nextname is nullable now.
 XMLReader::openXMLReader::open is now declared as static method, but can still be called on an XMLReader instance.
 XMLReader::XMLXMLReader::XML is now declared as static method, but can still be called on an XMLReader instance.
 XMLWriter::endAttribute现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::endCdata现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::endComment现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::endDocument现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::endDtd现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::endDtdAttlist现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::endDtdElement现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::endDtdEntity现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::endElement现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::endPi现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::flush现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::flushThis function can no longer return false.
 XMLWriter::fullEndElement现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::openMemoryThis function returns now an XMLWriter instance on success. Previouly, a 资源(resource) has been returned in this case.
 XMLWriter::openUriThis function returns now an XMLWriter instance on success. Previouly, a 资源(resource) has been returned in this case.
 XMLWriter::outputMemory现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::setIndent现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::setIndentString现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startAttribute现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startAttributeNs现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startAttributeNsprefix is nullable now.
 XMLWriter::startCdata现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startComment现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startDocument现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startDtd现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startDtdAttlist现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startDtdElement现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startDtdEntity现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startElement现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startElementNs现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::startPi现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::text现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeAttribute现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeAttributeNs现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeCdata现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeComment现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeDtd现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeDtdAttlist现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeDtdElement现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeDtdEntitypublicId, systemId and notationData are nullable now.
 XMLWriter::writeDtdEntity现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeElement现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeElementNs现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writePi现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
 XMLWriter::writeRaw现在 writer 需要 XMLWriter 实例, 之前需要的是 resource。
7.4.4proc_open为 options 参数增加 create_new_console 选项。
7.4.0array_merge允许不带参数调用,之前版本至少需要一个参数。
 array_merge_recursive允许不传递参数调用,之前的版本中至少需要一个参数。
 chr此函数不再静默接受不支持的 codepoint,并会将它们转为 0。
 fgetcsvescape 参数也接受空字符串来禁用所有的转义机制。
 fputcsvescape 参数现在接受空字符串来禁用专有转义机制。
 get_declared_classes之前 get_declared_classes 返回的顺序总是父类在前,子类在后。现在不会这样了。get_declared_classes 的返回值将不再保证顺序。
 get_magic_quotes_gpc该函数已被废弃。
 gzreadThis functions returns false on failure now; previously 0 was returned.
 gzwriteThis functions returns false on failure now; previously 0 was returned.
 hash_algos支持 crc32c。
 idn_to_ascii现在 variant 的默认值为 INTL_IDNA_VARIANT_UTS46 , 而不是已弃用的 INTL_IDNA_VARIANT_2003 。
 idn_to_utf8现在 variant 的默认值为 INTL_IDNA_VARIANT_UTS46 , 而不是已弃用的 INTL_IDNA_VARIANT_2003 。
 imagecropautoThe behavior of imagecropauto() in the bundled libgd has been synced with that of system libgd: IMG_CROP_DEFAULT no longer falls back to IMG_CROP_SIDES and threshold-cropping now uses the same algorithm as system libgd.
 imagecropautoThe default value of mode has been changed to IMG_CROP_AUTO. Formerly, the default value has been -1 which corresponds to IMG_CROP_DEFAULT, but passing -1 is now deprecated.
 implode在 array 之后传递 separator (即:使用遗留写法)已被废弃。
 ldap_control_paged_resultThis function has been deprecated.
 ldap_control_paged_result_responseThis function has been deprecated.
 password_hash扩展 sodium 提供了 Argon2 密码的替代实现。
 password_hash现在 algo 参数可支持 string 类型,但为了向后兼容也支持 int 类型。
 password_needs_rehash现在 algo 参数可以支持 string 类型,但为了向后兼容性,同时支持 int 类型。
 preg_replace_callback新增 flags 参数。
 preg_replace_callback_arrayThe flags parameter was added.
 proc_openproc_open 的 command 参数现在也允许数组类型。
 proc_open为 options 参数增加 create_process_group 选项。
 Locale::lookupdefaultLocale is nullable now.
 SplFileObject::fgetcsvThe escape parameter now also accepts an empty string to disable the proprietary escape mechanism.
 SplFileObject::fputcsvThe escape parameter now also accepts an empty string to disable the proprietary escape mechanism.
 SplFileObject::fwriteThe function now returns false instead of zero on failure.
 SplFileObject::getCsvControlThe escape character can now be an empty string.
 SplFileObject::setCsvControlThe escape parameter now also accepts an empty string to disable the proprietary escape mechanism.
 SQLite3Stmt::bindParamparam now also supports the @param notation.
 SQLite3Stmt::bindValueparam now also supports the @param notation.
7.3.24, 7.4.12tidyNode::isHtmlThis function has been fixed to have reasonable behavior. Previously, almost any node was reported as being an HTML node.
7.3.14, 7.4.2dba_openThe lmdb driver now supports an additional $mapsize parameter.
7.3.0DateTimeImmutable::createFromFormatThe v format specifier has been added.
 apache_request_headers此函数可用于 FPM SAPI 模式。
 array_push可以只用一个参数来调用此函数,之前版本中至少需要两个参数。
 array_unshift现在可以只用一个参数来调用,之前至少需要两个参数。
 bcmul现在 bcmul 可以按想要的小数点位数返回数字。 而之前,返回的数字会忽略尾随零(trailing decimal zeroes)。
 bcpow现在 bcpow 可以按想要的小数点位数返回数字。 而之前,返回的数字会忽略尾随零(trailing decimal zeroes)。
 bcscale现在 bcscale 不仅可以设置,还可以获取当前的小数点保留位数。 用于设置的时候,现在会返回之前的位数。 之前 scale 是强制的参数, 且 bcscale 总是返回 true。
 compact现在,如果字符串指向的变量未定义,compact 会产生 E_NOTICE 级错误。 在此之前,此类问题会静默忽略掉。
 define废弃了 case_insensitive,并将在 8.0.0 版中移除。
 ftp_nb_fget参数 mode 变为可选参数。 在之前的版本中,这是一个必填参数。
 ftp_nb_fput参数 mode 变为可选参数。 在之前的版本中,这是一个必填参数。
 ftp_nb_getmode 参数变为可选,之前是强制性的。
 ftp_nb_putmode 参数为可选,之前版本中为必填。
 ftp_putmode 参数为可选,之前版本中为必选。
 getallheaders该函数可以在 FPM SAPI 中使用。
 is_countableis_countable has been added.
 json_decodeflags 新增 JSON_THROW_ON_ERROR。
 json_encodeflags 参数新增 JSON_THROW_ON_ERROR 常量。
 ldap_addSupport for controls added
 ldap_compareSupport for controls added
 ldap_deleteSupport for controls added
 ldap_exopSupport for serverctrls added
 ldap_exop_passwdSupport for controls added
 ldap_listSupport for controls added
 ldap_mod_addSupport for controls added
 ldap_mod_delSupport for controls added
 ldap_mod_replaceSupport for controls added
 ldap_modify_batchSupport for controls added
 ldap_mod_add_extSupport for controls added
 ldap_mod_del_extSupport for controls added
 ldap_mod_replace_extSupport for controls added
 ldap_parse_resultSupport for controls added
 ldap_readSupport for controls added
 ldap_renameSupport for controls added
 ldap_rename_extSupport for controls added
 ldap_searchSupport for controls added
 list支持在数组解构时传引用。
 password_hash增加 PASSWORD_ARGON2ID,支持 Argon2id 密码算法。
 preg_quote字符 # 被增加为需要转义的。
 session_set_cookie_params增加 options 参数, 可以通过传入一个关联数组对各个选项进行设置。 同时,通过使用这个参数还可以对 SameSite cookie 进行设置。
 setcookieAn alternative signature supporting an options array has been added. This signature supports also setting of the SameSite cookie attribute.
 unlink现在 Windows 也可以用 unlink 删除文件句柄还在使用中的文件了,在此之前是无法删除的。 然而,还是无法重新创建文件,需要等到所有句柄都关闭才可以。
 var_export现在将 stdClass 对象作为数组类型转换为对象输出( (object) array( ... )),而不是使用不存在的 stdClass::__setState 方法。实际效果是,现在 stdClass 是可输出的,生成的代码甚至可以在早期的 PHP 版本上运行。
7.2.19, 7.3.6, 7.4.0DatePeriod::__constructrecurrences must be greater than 0 now.
7.2.19, 7.3.6SplFileObject::__toStringChanged from an alias of SplFileObject::current to an alias of SplFileObject::fgets.
7.2.18, 7.3.5substr_compareoffset 现在可能等于 main_str。
7.2.12DateInterval::formatThe F and f format will now always be positive.
7.2.0array_unique如果 flags 是 SORT_STRING, 之前会复制 array 并移除非唯一数组(之后并不打包数组), 现在是通过添加唯一元素来生成新数组。这可能会导致不同的数字索引。
 bcmod新增参数 scale。
 bcmod现在 num1 和 num2 不会截断成整数。 所以现在 bcmod 的表现更接近 fmod 而不是 % 操作符。
 count当 value 参数传入了无效的 countable 类型, count 现在会产生警告。
 date_parse返回数组的 zone 键现在代表秒,而不是分钟。并且正负符号已反转,例如:之前是 -120 现在是 7200。
 date_parse_from_formatThe zone element of the returned array represents seconds instead of minutes now, and its sign is inverted. For instance -120 is now 7200.
 date_sun_infoThe calculation was fixed with regards to local midnight instead of local noon, which changes the results slightly.
 exif_read_data新增了以下 EXIF 格式的支持: Samsung DJI Panasonic Sony Pentax Minolta Sigma/Foveon AGFA Kyocera Ricoh Epson
 exif_read_datafile 参数现在起支持本地文件和流式资源。
 get_class在此版本之前,object 的默认值是 null,它与不传递任何值有相同的效果。object 已经移除了默认值 null 且不再是有效的输入。
 gettype现在,已关闭的资源报告为 'resource (closed)'。 此前,已关闭的资源报告为 'unknown type'。
 hash_copy接受的参数以及返回值从资源类型修改为 HashContext 对象类型。
 hash_final接收参数从资源类型修改为 HashContext 对象类型。
 hash_hmac不再支持非加密的哈希函数(adler32,crc32,crc32b,fnv132,fnv1a32,fnv164,fnv1a64,joaat)。
 hash_hmac_file不再支持非加密的哈希函数(adler32,crc32,crc32b,fnv132,fnv1a32,fnv164,fnv1a64,joaat)。
 hash_init返回 HashContext 对象,不再返回资源类型。
 hash_init当使用 HASH_HMAC 选项的时候,不再支持非加密的哈希函数(adler32,crc32,crc32b,fnv132,fnv1a32,fnv164,fnv1a64,joaat)。
 hash_pbkdf2不再支持非加密的哈希函数(adler32,crc32,crc32b,fnv132,fnv1a32,fnv164,fnv1a64,joaat)。
 hash_update接收参数从资源类型修改为 HashContext 对象类型。
 hash_update_file接收参数从资源类型修改为 HashContext 对象类型。
 hash_update_stream接收参数从资源类型修改为 HashContext 对象类型。
 idn_to_asciiINTL_IDNA_VARIANT_2003 已被弃用; 可以使用 INTL_IDNA_VARIANT_UTS46 代替。
 idn_to_utf8INTL_IDNA_VARIANT_2003 已被弃用; 可以使用 INTL_IDNA_VARIANT_UTS46 代替。
 json_decodeflags 新增 JSON_INVALID_UTF8_IGNORE、JSON_INVALID_UTF8_SUBSTITUTE。
 json_decode现在 associative 允许为 null。
 json_encodeflags 参数新增 JSON_INVALID_UTF8_IGNORE 和 JSON_INVALID_UTF8_SUBSTITUTE 常量。
 mail现在 additional_headers 参数开始支持 array。
 mb_convert_encoding现在该函数的 string 参数同时能接受 array 类型。 在此之前,仅支持 string。
 number_formatnumber_format 现在无法返回 -0,之前可能返回 -0,因为 number 可能会是 -0.01。
 openssl_pkcs7_verify新增 p7bfilename 参数。
 packfloat 和 double 类型支持大端和小端。
 parse_str不带第二个参数的情况下使用 parse_str 会产生 E_DEPRECATED 警告。
 password_hash增加 PASSWORD_ARGON2I,支持 Argon2i 密码算法。
 preg_match现在 $flags 参数支持 PREG_UNMATCHED_AS_NULL。
 preg_match_all现在 $flags 参数可以支持 PREG_UNMATCHED_AS_NULL。
 proc_nice在 Windows 平台上可用。
 read_exif_data这个函数别名被废弃。
 session_abortThe return type of this function is bool now. Formerly, it has been void.
 session_module_name不允许设置模块名称为 "user"。 在之前的版本中,如果设置为 "user",那么会被静默的忽略到。
 session_namesession_name 函数会检查会话状态, 之前的版本仅仅检查 cookie 状态。 所以,旧版本的 PHP 允许你在调用 session_start 函数之后再调用 session_name 函数, 新版本的 PHP 不再允许这样做了。
 session_resetThe return type of this function is bool now. Formerly, it has been void.
 session_set_cookie_params成功时返回 true, 或者在失败时返回 false。 之前版本中是返回 void 的。
 session_write_closeThe return type of this function is bool now. Formerly, it has been void.
 set_error_handlererrcontext 被废弃。使用此参数时会导致 E_DEPRECATED 提醒。
 unpackfloat and double types supports both Big Endian and Little Endian.
 utf8_decodeThis function has been moved from the XML extension to the core of PHP. In previous versions, it was only available if the XML extension was installed.
 utf8_encodeThis function has been moved from the XML extension to the core of PHP. In previous versions, it was only available if the XML extension was installed.
 SQLite3::openBlobThe flags parameter has been added, allowing to write BLOBs; formerly only reading was supported.
7.1.5IntlDateFormatter::formatSupport for providing general DateTimeInterface objects to the datetime parameter was added. Formerly, only proper DateTime objects were supported.
7.1.4PDO::sqliteCreateFunctionThe flags parameter has been added.
 SQLite3::createFunctionThe flags parameter has been added.
7.1.0DateInterval::formatThe F and f format characters were added.
 DateTime::setTime新增 microsecond 参数。
 DateTimeImmutable::__constructFrom now on microseconds are filled with actual value. Not with '00000'.
 DateTimeImmutable::setTimeThe microsecond parameter was added.
 DateTimeZone::listIdentifiers现在,countryCode 可以为 null。
 array_rand内部随机化算法已从 libc rand 函数更改为使用 梅森旋转算法(Mersenne Twister) 随机数生成器。
 file_get_contents支持负数 offset。
 getenv现在可以省略 varname 来检索所有环境变量的关联数组 array。
 getopt添加 rest_index 参数。
 grapheme_extractSupport for negative offsets has been added.
 grapheme_striposSupport for negative offsets has been added.
 grapheme_strposSupport for negative offsets has been added.
 hash_algos加入 sha512/224,sha512/256,sha3-224,sha3-256,sha3-384 以及 sha3-512 算法的支持。
 iconv_strposSupport for negative offsets has been added.
 json_decodeAn empty JSON key ("") can be encoded to the empty object property instead of using a key with value _empty_.
 json_encode对 Double 的值进行编码时,使用 serialize_precision 代替 precision。
 json_encodeflags 参数新增 JSON_UNESCAPED_LINE_TERMINATORS 常量。
 list现在可以指定 list 中的键。 这就可以解构非数字键或者无顺序的数组。
 long2ip参数 proper_address 的类型从 string 改成 integer。
 mb_eregmb_ereg will now set matches to an empty array, if nothing matched. Formerly, matches was not modified in that case.
 mb_ereg_replaceThe function checks whether string is valid for the current encoding.
 mb_ereg_replaceThe e modifier has been deprecated.
 mb_ereg_replace_callbackThe function checks whether string is valid for the current encoding.
 mb_ereg_search_setposSupport for negative offsets has been added.
 mb_eregimb_eregi will now set matches to an empty array, if nothing matched. Formerly, matches was not modified in that case.
 mb_eregi_replaceThe e modifier has been deprecated.
 mb_eregi_replaceThe function checks whether string is valid for the current encoding.
 mb_strimwidth支持负数的 start 和 width。
 mb_stripos支持 offset 使用负数。
 mb_strpos支持负数的 offset。
 openssl_decrypt添加了 tag 和 aad 参数。
 openssl_encrypt增加了 tag、aad、tag_length 参数
 openssl_pkey_new添加了 curve_name 配置参数使得可以创建 EC 密钥。
 session_start当 session_start 执行失败, 无法开始一个会话的时候,会返回 false, 并且不会初始化超级变量 $_SESSION。
 shuffle内置的随机数产生算法从 libc rand 函数改成梅森旋转伪随机数生成算法。
 str_shuffle内置的随机算法从 libc rand 函数改成了梅森旋转演伪随机数发生算法。
 stripos开始支持负数的 offset。
 strpos开始支持负数的 offset。
 substr_count开始支持负数的 offset 和 length。
 unpackThe optional offset has been added.
 ReflectionType::__toStringReflectionType::__toString has been deprecated.
 SessionHandler::gcPrior to this version, the function returned true on success.
 SessionHandlerInterface::gcPrior to this version, the function returned true on success.
7.0.16, 7.1.2fopen新增 'e' 选项。
7.0.15,7.1.1pack添加了 “e”,“E”,“g” 和 “G” 代码以启用 float 和 double 的字节顺序支持。
7.0.11iconv_substr如果 str 等长于 offset 个字符, 将返回空字符串。之前的版本里,这种情况是会返回 false 的。
7.0.10SplFileObject::getCsvControlAdded the escape character to the returned array.
 SQLite3::__constructThe filename can now be empty to use a private, temporary on-disk database.
7.0.7curl_setopt引入 CURL_HTTP_VERSION_2、 CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE、 CURL_HTTP_VERSION_2TLS、 CURL_REDIR_POST_301、 CURL_REDIR_POST_302、 CURL_REDIR_POST_303、 CURL_REDIR_POST_ALL、 CURL_VERSION_KERBEROS5、 CURL_VERSION_PSL、 CURL_VERSION_UNIX_SOCKETS、 CURLAUTH_NEGOTIATE、 CURLAUTH_NTLM_WB、 CURLFTP_CREATE_DIR、 CURLFTP_CREATE_DIR_NONE、 CURLFTP_CREATE_DIR_RETRY、 CURLHEADER_SEPARATE、 CURLHEADER_UNIFIED、 CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE、 CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE、 CURLMOPT_MAX_HOST_CONNECTIONS、 CURLMOPT_MAX_PIPELINE_LENGTH、 CURLMOPT_MAX_TOTAL_CONNECTIONS、 CURLOPT_CONNECT_TO、 CURLOPT_DEFAULT_PROTOCOL、 CURLOPT_DNS_INTERFACE、 CURLOPT_DNS_LOCAL_IP4、 CURLOPT_DNS_LOCAL_IP6、 CURLOPT_EXPECT_100_TIMEOUT_MS、 CURLOPT_HEADEROPT、 CURLOPT_LOGIN_OPTIONS、 CURLOPT_PATH_AS_IS、 CURLOPT_PINNEDPUBLICKEY、 CURLOPT_PIPEWAIT、 CURLOPT_PROXY_SERVICE_NAME、 CURLOPT_PROXYHEADER、 CURLOPT_SASL_IR、 CURLOPT_SERVICE_NAME、 CURLOPT_SSL_ENABLE_ALPN、 CURLOPT_SSL_ENABLE_NPN、 CURLOPT_SSL_FALSESTART、 CURLOPT_SSL_VERIFYSTATUS、 CURLOPT_STREAM_WEIGHT、 CURLOPT_TCP_FASTOPEN、 CURLOPT_TFTP_NO_OPTIONS、 CURLOPT_UNIX_SOCKET_PATH、 CURLOPT_XOAUTH2_BEARER、 CURLPROTO_SMB、 CURLPROTO_SMBS、 CURLPROXY_HTTP_1_0、 CURLSSH_AUTH_AGENT 和 CURLSSLOPT_NO_REVOKE。
7.0.0assertassert is now a language construct and not a function. assertion can now be an expression. The second parameter is now interpreted either as an exception (if a Throwable object is given), or as the description supported from PHP 5.4.8 onwards.
 define允许 array 的值。
 dirname添加可选的 levels 参数。
 getrusage此函数现在开始支持 Windows。
 openssl_open添加了 iv 参数
 openssl_seal添加 iv 变量。
 session_start新加 options 参数。
5.6.0htmlentitiesThe default value for the encoding parameter was changed to be the value of the default_charset configuration option.
 htmlspecialcharsThe default value for the encoding parameter was changed to be the value of the default_charset configuration option.
 ReflectionClass::newInstanceWithoutConstructorAll internal classes can now be instantiated except for those declared final.
5.5.38, 5.6.24, 7.0.9getenv添加 local_only 参数。
5.5.1hex2bin如果输入的字符串是无效的十六进制字符串则抛出一个警告,
5.5.0/PECL 3.0.0IntlDateFormatter::createAn IntlCalendar object is allowed for calendar. Objects of type IntlTimeZone and DateTimeZone are allowed for timezone. Invalid timezone identifiers (including empty strings) are no longer allowed for timezone. If null is given for timezone, the timezone identifier given by date_default_timezone_get will be used instead of ICUʼs default.
 IntlDateFormatter::setCalendarIt became possible to pass an IntlCalendar object.
5.5.0emptyempty 现在支持表达式了,而不仅仅是变量。
 ip2longPrior to this version, on Windows ip2long would sometimes return a valid number even if passed a value which was not an (IPv4) Internet Protocol dotted address.
 此函数会生成一个 E_DEPRECATED 错误。
 mysql_list_dbs 函数已废弃,调用时会抛出 E_DEPRECATED 级别的错误。
 函数会抛出一个 E_DEPRECATED 错误。
 mysql_tablename 函数已废弃,调用时会抛出 E_DEPRECATED 级别的错误。
 setrawcookie发送给客户端的 Set-Cookie 头现在会加上 Max-Age 属性。
5.4.32, 5.5.16ucwords增加了 delimiters 参数。
5.4.8assert增加了参数 description。 description 现在也作为第四个参数提供给 ASSERT_CALLBACK 模式里的回调函数。
 mb_strcutPassing NULL as length extracts all bytes to the end of the string. Prior to this version NULL was treated the same as 0.
 mb_substrlength 传入 NULL,则从 start 提取到字符串的结尾处。 在之前的版本里, NULL 会被当作 0 来处理。
5.4.7parse_url修复了 host 在 协议 省略时的识别。
5.4.4hex2bin如果输入的字符串有多余将抛出异常。 PHP 5.4.0 起字符串将被静默地接受,但是最后的字节会被截断。
5.4.0dns_get_record增加了参数raw。
 empty检查非数字的字符串偏移量会返回 true.
 filter_input_array添加 add_empty 参数.
 filter_var_array添加 add_empty 参数。
 get_html_translation_tableThe default value for the encoding parameter was changed to UTF-8.
 get_html_translation_tableThe constants ENT_HTML401, ENT_XML1, ENT_XHTML and ENT_HTML5 were added.
 get_magic_quotes_runtime总是返回 false,因为魔术引号(magic quotes)功能已经从 PHP 中移除。
 htmlentities增加常量 ENT_SUBSTITUTE、 ENT_DISALLOWED、 ENT_HTML401、 ENT_XML1、 ENT_XHTML、 ENT_HTML5。
 htmlentitiesencoding 参数的默认值改成 UTF-8。
 htmlspecialchars增加常量 ENT_SUBSTITUTE、 ENT_DISALLOWED、 ENT_HTML401、 ENT_XML1、 ENT_XHTML、 ENT_HTML5。
 htmlspecialcharsencoding 参数的默认值改成 UTF-8。
 htmlspecialchars_decode增加了 ENT_HTML401、ENT_XML1、 ENT_XHTML 和 ENT_HTML5 等常量。
 http_build_query加入了 enc_type 参数。
 iconv这个版本起,字符非法时候会返回 false,除非在输出字符里指定了 //IGNORE 。 在之前版本,它会返回一部分字符串。
 imagewebp支持把 resource 流作为 to 参数传入。
 number_formatThis function now supports multiple bytes in dec_point and thousands_sep. Only the first byte of each separator was used in older versions.
 openssl_decrypt将 raw_output 更改至 options。
5.3.4get_html_translation_tableThe encoding parameter was added.
 rawurlencode因为 rawurlencode 使用了 EBCDIC,所以波浪线字符不会再被编码。
 strip_tagsstrip_tags ignores self-closing XHTML tags in allowable_tags.
5.3.3openssl_decrypt添加 iv 参数。
 parse_url在 URL 解析失败时将不会产生 E_WARNING 级别的错误。
5.3.0acoshThis function is now available on all platforms
 asinh此函数在所有平台上均可用
 atanh此函数在所有平台上都可以用了
 checkdnsrr这个函数在Windows平台上也可以使用了。
 dns_get_record在此版本之前,如果给参数authns传入值,则必须同时传入addtl的值。
 dns_get_record可以是在windows平台上使用这个函数了。
 expm1此函数在所有平台上均可用
 func_get_arg该函数可以在参数列表中使用。
 func_get_argIf this function is called from the outermost scope of a file which has been included by calling include or require from within a function in the calling file, it now generates a warning and returns false. (不知道如何翻译跟好,直接参考例2即可明白)
 func_get_args该函数可以在参数列表中使用。
 func_get_argsIf this function is called from the outermost scope of a file which has been included by calling include or require from within a function in the calling file, it now generates a warning and returns false. (不知道如何翻译跟好,直接参考例2即可明白)
 func_num_argsIf this function is called from the outermost scope of a file which has been included by calling include or require from within a function in the calling file, it now generates a warning and returns -1.
 func_num_argsThis function can now be used in parameter lists.
 get_cfg_varget_cfg_var 被修复,能够返回 "array" 的 ini 选项。
 getimagesizeAdded icon support.
 getmxrrWindows 平台上也能用这个函数了。
 htmlentities增加常量 ENT_IGNORE。
 htmlspecialchars增加常量 ENT_IGNORE。
 imagecolorclosesthwb在 Windows 平台上可用
 imagefilterPixelation support (IMG_FILTER_PIXELATE) was added.
 ini_get当配置项不存在,之前会返回空字符串,现在会返回 false。
 ini_get_all增加参数 details。
 link该功能在 Windows 平台下开始有效(Vista、 Server 2008 或更高版本)。
 linkinfoWindows 平台上开始可用(Vista、Server 2008 或更高版本)。
 log1p此函数在所有平台上均可用
 nl2br新增可选的 is_xhtml 参数。在此之前,总是插入 '<br />'。
 openssl_open添加了 method 参数
 openssl_seal添加 method 变量。
 rawurlencode现在符合了RFC 3986。
 readlink此函数在 Windows 平台下可用(Vista、Server 2008 或更高版本)。
 session_start如果函数调用失败返回 false, 之前版本返回了 true。
 setlocaleThis function now throws an E_DEPRECATED notice if a string is passed to the category parameter instead of one of the LC_* constants.
 spl_autoload_register引入了命名空间的支持。
 spl_autoload_register添加了 prepend 参数。
 stristr新增可选的 before_needle 参数。
 strstr新增可选的 before_needle 参数。
 symlink此函数在 Windows 平台上可用(Vista、Server 2008 或更高版本)。
 time_nanosleep至此之后该函数在Windows平台下可用。
 time_sleep_until自此,函数在Windows平台可用。
5.2.10ip2long再此之前的版本, ip2long 有时会返回即使这不是一个IPV4的标准地址的数字地址。
5.2.5addcslashesThe escape sequences \v and \f were added.
 imagefilterAlpha support for IMG_FILTER_COLORIZE was added.
5.2.4checkdnsrr增加了TXT的记录类型。
5.2.3getimagesizeRead errors generated by this function downgraded to E_NOTICE from E_WARNING.
 htmlentities增加参数 double_encode。
 htmlspecialchars增加参数 double_encode。
 PDOStatement::getColumnMetatable 字段
5.2.2ftp_ssl_connect以前版本中,如果无法使用 SSL 连接,将会返回一个非 SSL 的连接, 在 5.2.2 版本中修改为返回 false
 phpinfo增加了“已加载的配置文件”信息,之前只存在“配置文件路径(php.ini)"。
 token_get_allLine numbers are returned in element 2
5.2.1iterator_to_array添加了 use_keys 参数。
 memory_get_peak_usage使用此函数无需在编译时加上 --enable-memory-limit 选项。
 memory_get_usage不需要在编译时使用 --enable-memory-limit 选项就能够使用这个函数。
 mt_srandThe Mersenne Twister implementation in PHP now uses a new seeding algorithm by Richard Wagner. Identical seeds no longer produce the same sequence of values they did in previous versions. This behavior is not expected to change again, but it is considered unsafe to rely upon it nonetheless.
5.2.0base64_decode增加了 strict 。
 curl_multi_info_readmsgs_in_queue被加入。
 imagettftextIt is now possible to specify an hexadecimal entity in text.
 mb_strrpos增加了可选参数 offset。
 memory_get_peak_usage添加参数 real_usage。
 memory_get_usage增加了参数 real_usage。
 openssl_verify添加了 signature_alg 参数。
 session_get_cookie_params在返回数组中加入 “httponly”。
 session_set_cookie_params加入 httponly 参数。
 setrawcookie增加了 httponly 参数。
 PDOStatement::executeinput_parameters 中的键名必须和 SQL 中声明的相匹配。PHP 5.2.0 之前默认忽略。
5.1.3curl_getinfo引入CURLINFO_HEADER_OUT.
 get_headers自 PHP 5.1.3 起本函数使用默认的流上下文,其可以用 stream_context_get_default 函数设定和修改。
 http_build_query方括号也会被转义。
5.1.2http_build_query加入了参数 arg_separator。
 parse_url增加了参数 component。
5.1.0class_implements增加了允许参数class为字符串的选项。增加了autoload参数。
 class_parents增加了允许参数class为字符串的选项。增加了autoload参数。
 ctype_digit在 PHP 5.1.0 之前,当 text 是一个空字符串的时候,该函数将返回 true 。
 imagerotate新增: ignore_transparent 。
5.0.0checkdnsrr增加了AAAA的记录类型。
 is_executableis_executable 开始可用以于 Windows。
 jdtojewish增加了参数 fl。
 socket_create增加 AF_INET6 支持。
 strip_tagsstrip_tags 变为二进制安全的。
 strrpos参数 needle 可以是一个多字符的字符串。
 strrpos引入 offset 参数。
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