How to increase maximum execution time in php

ini_set('max_execution_time', '300'); //300 seconds = 5 minutes
ini_set('max_execution_time', '0'); // for infinite time of execution 

Place this at the top of your PHP script and let your script loose!

Taken from Increase PHP Script Execution Time Limit Using ini_set()

use below statement if safe_mode is off

set_time_limit(0);

Use the PHP function

void set_time_limit ( int $seconds )

The maximum execution time, in seconds. If set to zero, no time limit is imposed.

This function has no effect when PHP is running in safe mode. There is no workaround other than turning off safe mode or changing the time limit in the php.ini.

You can try to set_time_limit(n). However, if your PHP setup is running in safe mode, you can only change it from the php.ini file.