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This document uses PHP Chinese website manual Release
(PECL mysqlnd-uh >= 1.0.0-alpha)
mysqlnd_uh_set_connection_proxy — Installs a proxy for mysqlnd connections
&$connection_proxy
[, mysqli &$mysqli_connection
] )Installs a proxy object to hook mysqlnd's connection objects methods. Once installed, the proxy will be used for all MySQL connections opened with mysqli, mysql or PDO_MYSQL, assuming that the listed extensions are compiled to use the mysqlnd library.
The function can be disabled with
mysqlnd_uh.enable .
If mysqlnd_uh.enable
is set to FALSE
the function will not install the proxy and
always return TRUE
. Additionally, an error of the
type E_WARNING may be emitted. The error message may
read like PHP Warning: mysqlnd_uh_set_connection_proxy(): (Mysqlnd User Handler)
The plugin has been disabled by setting the configuration parameter mysqlnd_uh.enable = false.
The proxy has not been installed [...].
connection_proxy
A proxy object of type MysqlndUhConnection.
mysqli_connection
Object of type mysqli. If given, the proxy will be set for this particular connection only.
Returns TRUE
on success.
Otherwise, returns FALSE
Example #1 mysqlnd_uh_set_connection_proxy() example
<?php
$mysqli = new mysqli ( "localhost" , "root" , "" , "test" );
$mysqli -> query ( "SELECT 'No proxy installed, yet'" );
class proxy extends MysqlndUhConnection {
public function query ( $res , $query ) {
printf ( "%s(%s)\n" , __METHOD__ , var_export ( func_get_args (), true ));
$ret = parent :: query ( $res , $query );
printf ( "%s returns %s\n" , __METHOD__ , var_export ( $ret , true ));
return $ret ;
}
}
mysqlnd_uh_set_connection_proxy (new proxy ());
$mysqli -> query ( "SELECT 'mysqlnd rocks!'" );
$mysql = mysql_connect ( "localhost" , "root" , "" , "test" );
mysql_query ( "SELECT 'Ahoy Andrey!'" , $mysql );
$pdo = new PDO ( "mysql:host=localhost;dbname=test" , "root" , "" );
$pdo -> query ( "SELECT 'Moin Johannes!'" );
?>
以上例程会输出:
proxy::query(array ( 0 => NULL, 1 => 'SELECT \'mysqlnd rocks!\'', )) proxy::query returns true proxy::query(array ( 0 => NULL, 1 => 'SELECT \'Ahoy Andrey!\'', )) proxy::query returns true proxy::query(array ( 0 => NULL, 1 => 'SELECT \'Moin Johannes!\'', )) proxy::query returns true