執行時期設定

這些函式的行為受 php.ini 的影響。

PHP Options/Inf Configuration Options
名字 預設 可修改範圍 更新日誌
assert.active "1" PHP_INI_ALL  
assert.bail "0" PHP_INI_ALL  
assert.warning "1" PHP_INI_ALL  
assert.callback NULL PHP_INI_ALL  
assert.quiet_eval "0" PHP_INI_ALL  
enable_dl "1" PHP_INI_SYSTEM 本過時功能確定未來將被移除
max_execution_time "30" PHP_INI_ALL  
max_input_time "-1" PHP_INI_PERDIR Available since PHP 4.3.0.
max_input_nesting_level "64" PHP_INI_PERDIR Available since PHP 4.4.8 and PHP 5.2.3.
max_input_vars 1000 PHP_INI_PERDIR Available since PHP 5.3.9.
magic_quotes_gpc "1" PHP_INI_PERDIR PHP_INI_ALL in PHP <= 4.2.3. Removed in PHP 5.4.0.
magic_quotes_runtime "0" PHP_INI_ALL Removed in PHP 5.4.0.
zend.enable_gc "1" PHP_INI_ALL Available since PHP 5.3.0.
有關 PHP_INI_* 常數進一步的細節與定義參見Where a configuration setting may be set

以下是設定選項的簡要解釋。

assert.active boolean

Enable assert() evaluation.

assert.bail boolean

Terminate script execution on failed assertions.

assert.warning boolean

Issue a PHP warning for each failed assertion.

assert.callback string

user function to call on failed assertions

assert.quiet_eval boolean

Use the current setting of error_reporting() during assertion expression evaluation. If enabled, no errors are shown (implicit error_reporting(0)) while evaluation. If disabled, errors are shown according to the settings of error_reporting()

enable_dl boolean

This directive is really only useful in the Apache module version of PHP. You can turn dynamic loading of PHP extensions with dl() on and off per virtual server or per directory.

The main reason for turning dynamic loading off is security. With dynamic loading, it's possible to ignore all open_basedir restrictions. The default is to allow dynamic loading, except when using 安全模式. In 安全模式, it's always impossible to use dl().

max_execution_time integer

This sets the maximum time in seconds a script is allowed to run before it is terminated by the parser. This helps prevent poorly written scripts from tying up the server. The default setting is 30. When running PHP from the command line the default setting is 0.

The maximum execution time is not affected by system calls, stream operations etc. Please see the set_time_limit() function for more details.

You can not change this setting with ini_set() when running in 安全模式. The only workaround is to turn off safe mode or by changing the time limit in the php.ini.

Your web server can have other timeout configurations that may also interrupt PHP execution. Apache has a Timeout directive and IIS has a CGI timeout function. Both default to 300 seconds. See your web server documentation for specific details.

max_input_time integer

This sets the maximum time in seconds a script is allowed to parse input data, like POST and GET. Timing begins at the moment PHP is invoked at the server and ends when execution begins.

max_input_nesting_level integer

Sets the max nesting depth of input variables (i.e. $_GET, $_POST..)

max_input_vars integer

How many input variables may be accepted (limit is applied to $_GET, $_POST and $_COOKIE superglobal separately). Use of this directive mitigates the possibility of denial of service attacks which use hash collisions. If there are more input variables than specified by this directive, an E_WARNING is issued, and further input variables are truncated from the request.

magic_quotes_gpc boolean
Warning

本功能已自 PHP 5.3.0 起廢棄並將自 PHP 5.4.0 起移除

Sets the magic_quotes state for GPC (Get/Post/Cookie) operations. When magic_quotes are on, all ' (single-quote), " (double quote), \ (backslash) and NUL's are escaped with a backslash automatically.

Note:

In PHP 4, also $_ENV variables are escaped.

Note:

If the magic_quotes_sybase directive is also ON it will completely override magic_quotes_gpc. Having both directives enabled means only single quotes are escaped as ''. Double quotes, backslashes and NUL's will remain untouched and unescaped.

See also get_magic_quotes_gpc()

magic_quotes_runtime boolean
Warning

本功能已自 PHP 5.3.0 起廢棄並將自 PHP 5.4.0 起移除

If magic_quotes_runtime is enabled, most functions that return data from any sort of external source including databases and text files will have quotes escaped with a backslash. If magic_quotes_sybase is also on, a single-quote is escaped with a single-quote instead of a backslash.

Functions affected by magic_quotes_runtime (does not include functions from PECL):

zend.enable_gc boolean

Enables or disables the circular reference collector.

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top