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Dieses Dokument verwendet PHP-Handbuch für chinesische Websites Freigeben
(PECL mysqlnd-uh >= 1.0.0-alpha)
MysqlndUhConnection::getErrorNumber — Returns the error code for the most recent function call
$connection
)Returns the error code for the most recent function call.
connection
Mysqlnd connection handle. Do not modify!
Error code for the most recent function call.
MysqlndUhConnection::getErrorNumber() is not only executed after the invocation of a user space API call which maps directly to it but also called internally.
Example #1 MysqlndUhConnection::getErrorNumber() example
<?php
class proxy extends MysqlndUhConnection {
public function getErrorNumber ( $res ) {
printf ( "%s(%s)\n" , __METHOD__ , var_export ( func_get_args (), true ));
$ret = parent :: getErrorNumber ( $res );
printf ( "%s returns %s\n" , __METHOD__ , var_export ( $ret , true ));
return $ret ;
}
}
mysqlnd_uh_set_connection_proxy (new proxy ());
printf ( "connect...\n" );
$mysqli = new mysqli ( "localhost" , "root" , "" , "test" );
printf ( "query...\n" );
$mysqli -> query ( "PLEASE_LET_THIS_BE_INVALID_SQL" );
printf ( "errno...\n" );
var_dump ( $mysqli -> errno );
printf ( "close...\n" );
$mysqli -> close ();
?>
以上例程会输出:
connect... proxy::getErrorNumber(array ( 0 => NULL, )) proxy::getErrorNumber returns 0 query... errno... proxy::getErrorNumber(array ( 0 => NULL, )) proxy::getErrorNumber returns 1064 int(1064) close...