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Editorial Team
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Asked: 2026-05-21T22:26:59+00:00

I have custom build system written in PHP. It’s similar to make tool, gathering

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I have custom build system written in PHP. It’s similar to make tool, gathering source files with dependencies to compile and link them.

It uses system function to run G++, like this:

    system("g++ -c $file -o $out");

It’s working great. However I have a multi-core processor and I would like to use those extra cores to speed up the process (like make -j 8). How can I do it in PHP? I don’t need to have multithreading in PHP per se, I just need to spawn few child processes and wait for them to complete.

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1 Answer

  1. Editorial Team

    Since that is usually built-in for PHPs CLI version, you can use pcntl_fork(). It duplicates the current PHP process into a child, which can then work separately from the parent process.

    See the example on the manual page.

    (You could also utilize PEAR System_Daemon which encapsulates that functionality; though it does a bit too much for your case.)

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