Script code for nginx to automatically restart the 502 Bad Gateway

The principle is to use curl to obtain the HTTP header and execute the command to restart PHP-FPM when the 502 status code is found. CopyCodeThe Code is as follows :#! /Usr/bin/PHP
<! -- $ Url = 'HTTP: // www.jb51.net ';
$ Cmd = '/usr/local/PHP/sbin/PHP-FPM restart ';

For ($ I = 0; $ I <5; $ I ++) {$ exec = "curl connect-Timeout 3-I $ URL 2>/dev/null ";
$ Res = shell_exec ($ Exec );

If (stripos ($ res, '2014, 502 Bad gateway ')! = False ){
Shell_exec ($ cmd );
Exit ();
}
}
-->

For crontab, search by Google or refer to the followingArticle
Http://www.jb51.net/LINUXjishu/19905.html
Http://www.jb51.net/LINUXjishu/17374.html