This function is for connecting to a pair of MySQL fail over servers. It tries to connect to the first availiable server in the array list of $mysql_servers and so on. The main use for this function is for MySQL servers in a two way replication setup. The client can read from any of the servers using the normal mysql_connect function but for writing mysql_rep_connect is safer in that it only addresses one server at a time, thus preventing data conflict. Add set-variable = max_connect_errors=2147483647 to avoid problems. By : Rival7 <?php /* Description: Connect to the first available mysql master server Author: Nathan Cassano License: Public */ function mysql_rep_connect(){ $timeout = 15; $mysql_servers = array( array("mysql1.yourdomain.tdl", "username", "password"), array("mysql2.yourdomain.tdl, "username", "password") ); $connection = false; foreach($mysql_servers as $server){ list($hostname, $username, $passwd) = $server; if($fp = fsockopen($hostname, 3306, &$errno, &$errstr, $timeout)){ fclose($fp); $connection = @mysql_pconnect($hostname, $username, $passwd); if($connection > 0)break; } } return $connection; } ?> | DISCLAIMER: The content provided in this article is not warranted or guaranteed by Developer Shed, Inc. The content provided is intended for entertainment and/or educational purposes in order to introduce to the reader key ideas, concepts, and/or product reviews. As such it is incumbent upon the reader to employ real-world tactics for security and implementation of best practices. We are not liable for any negative consequences that may result from implementing any information covered in our articles or tutorials. If this is a hardware review, it is not recommended to open and/or modify your hardware. |
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