mysql_ping

Description

Checks whether or not the connection to the server is working. If it has gone down, an automatic reconnection is attempted. This function can be used by scripts that remain idle for a long while, to check whether or not the server has closed the connection and reconnect if necessary.

Parameters

Return Values

Returns TRUE if the connection to the server MySQL server is working, otherwise FALSE.

Examples

Example 1. A mysql_ping() example <?php set_time_limit(0); $conn = mysql_connect('localhost', 'mysqluser', 'mypass'); $db   = mysql_select_db('mydb'); /* Assuming this query will take a long time */ $result = mysql_query($sql); if (!$result) {     echo 'Query #1 failed, exiting.';     exit; } /* Make sure the connection is still alive, if not, try to reconnect */ if (!mysql_ping($conn)) {     echo 'Lost connection, exiting after query #1';     exit; } mysql_free_result($result); /* So the connection is still alive, let's run another query */ $result2 = mysql_query($sql2); ?>

See Also