Exec within a for loop - execute multiple instances

Question

How can you run multiple exec instances from a for loop and run them separately (i.e. not have one dependent on another finishing before starting another)? I have the following code which is hopefully self explanatory:

for ($i = 0;$i < 5;$i++){
    exec('START '.$path.' '.PATH.'spawn.php "'."$type,$core".'"');
}

I have looked at php in background exec() function but it isn't a duplicate as I am using the START command and adding an & did not fix it.

I have tried /B as an option but additionally this didn't work - it just ran it in the background.

Okey the reason the & did not work is because that's for a Unix OS. Do you want the processes the run in parallel or one after the other? — Jason K
– Jason K, Commented Sep 2, 2015 at 15:14

Community · Accepted Answer · 2023-11-17 19:32:19Z

1

Under windows you will need to do it a bit differently.

$runCommand = 'calc.exe';
$WshShell = new COM("WScript.Shell");
$oExec = $WshShell->Run($runCommand, 7, false);

This should help explain it http://www.somacon.com/p395.php

https://www.php.net/manual/en/function.exec.php#43917

edited Nov 17, 2023 at 19:32

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answered Sep 2, 2015 at 15:28

Jason K

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1 Comment

Ukuser32 Over a year ago

Brilliant. Although I still need to tweak my code WScript.Shell through COM worked great. Thanks

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