pg_client_encoding
pg_close(...) will not technically close a persistent connection but instead returns it back to the connection pool thus giving you the desired effect of having the connection closed within your script.
http://www.sitepoint.com/article/accessing-postgresql-php/3
best wishes to all.
pg_close
(PHP 4, PHP 5)
pg_close — 关闭一个 PostgreSQL 连接
说明
bool pg_close
([ resource
$connection
] )
pg_close() 关闭由所给资源 connection
指定的到 PostgreSQL 数据库的非持久连接。
Note:
使用 pg_close() 并不很必要，因为非持久连接在本脚本执行结束后会自动关闭。
如果在此连接中打开了 large object 资源，则在关闭所有 large object 资源之前不要关闭连接。
参数
-
connection -
PostgreSQL database connection resource. When
connectionis not present, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().
返回值
成功时返回 TRUE， 或者在失败时返回 FALSE。
范例
Example #1 pg_close() 例子
<?php
$dbconn = pg_connect("host=localhost port=5432 dbname=mary")
or die("Could not connect");
echo "Connected successfully";
pg_close($dbconn);
?>
以上例程会输出：
Connected successfully
add a note
User Contributed Notes
pg_close - [3 notes]
amays ¶
7 years ago
mark at redbrick dot dcu dot ie ¶
10 years ago
This function closes the current database connection specified by a handle returned from a pg_connect() call.
<?php
$pgsql_conn = pg_connect("dbname=mark host=localhost");
if ($pgsql_conn) {
print "Successfully connected to: " . pg_host($pgsql_conn) . "<br/>\n";
} else {
print pg_last_error($pgsql_conn);
exit;
}
// Do database stuff here.
if(!pg_close($pgsql_conn)) {
print "Failed to close connection to " . pg_host($pgsql_conn) . ": " .
pg_last_error($pgsql_conn) . "<br/>\n";
} else {
print "Successfully disconnected from database";
}
?>
Of course you normally wouldn't print a message.
Regards, --mark
nox at macports dot org ¶
5 years ago
An E_WARNING level warning is generated if the supplied argument is not a valid postgresql link resource.