Set Maximum Execution Time for Exec() Specifically

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()

Limit execution time of an function or command PHP

set_time_limit() does run globally, but it can be reset locally.

Set the number of seconds a script is allowed to run. If this is reached,
the script returns a fatal error. The default limit is 30 seconds or, if it
exists, the max_execution_time value defined in the php.ini.

When called, set_time_limit() restarts the timeout counter from zero. In
other words, if the timeout is the default 30 seconds, and 25 seconds
into script execution a call such as set_time_limit(20) is made, the script
will run for a total of 45 seconds before timing out.

I've not tested it, but you may be able to set it locally, resetting when you leave the

<?php
set_time_limit(0);  // global setting

function doStuff()
{
    set_time_limit(10);   // limit this function
    //  stuff
    set_time_limit(10);   // give ourselves another 10 seconds if we want
    //  stuff
    set_time_limit(0);    // the rest of the file can run forever
}

// ....
sleep(900);
// ....
doStuff();  // only has 10 secs to run
// ....
sleep(900);
// ....

set_time_limit() ... Any time spent on activity that happens outside the execution of the script such as system calls using system(), stream operations, database queries, etc. is not included when determining the maximum time that the script has been running. This is not true on Windows where the measured time is real.

Maximum execution time in phpMyadmin

I have the same error, please go to

xampp\phpMyAdmin\libraries\config.default.php

Look for : $cfg['ExecTimeLimit'] = 600;

You can change '600' to any higher value, like '6000'.

Maximum execution time in seconds is (0 for no limit).

This will fix your error.

Avoid PHP execution time limit

@emanuel:

I guess when your friend told you "A friend suggested me to sign in and log out frequently from the server, but I have no idea how to do this.", he/she must have meant "Split your script computation into x pieces of work and run it separately"

For example with this script you can execute it 150 times to achieve a 150! (factorising) and show the result:

// script name: calc.php

<?php

 session_start();

 if(!isset($_SESSION['times'])){

    $_SESSION['times'] = 1;

    $_SESSION['result']  = 0;

 }elseif($_SESSION['times'] < 150){

    $_SESSION['times']++;

    $_SESSION['result'] = $_SESSION['result'] * $_SESSION['times'];

    header('Location: calc.php');

 }elseif($_SESSION['times'] == 150){

    echo "The Result is: " . $_SESSION['result'];

    die();

 }

?>

BTW (@Davmuz), you can only use set_time_limit() function on Apache servers, it's not a valid function on Microsoft IIS servers.

make script execution to unlimited

You'll have to set it to zero. Zero means the script can run forever. Add the following at the start of your script:

ini_set('max_execution_time', 0);

Refer to the PHP documentation of max_execution_time

Note that:

set_time_limit(0);

will have the same effect.

limit execution time of shell_exec

You can't do this from within PHP - set_time_limit() is only checked after each PHP statement gets executed. Under linux you'd use ulimit, but it looks like you're using Windows.

You'll need to either modify the hello.exe executable to build in a timeout, or write a wrapper that you call from PHP, which call hello.exe and handles the timeout. In any language that can easily fork, this is trivial.

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