后台exec()函数中的php [英] php in background exec() function

问题描述

我制作了这个脚本来测试PHP作为后台进程的执行情况

I made this script to test the execution of PHP as a background process

foreach($tests as $test) { 
   exec("php test.php ".$test["id"]); 
} 

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但是该脚本的运行速度不会比不添加test.php的脚本运行速度更快.

But the script does not run faster than when it was all in one script without the addition of test.php.

我做错了什么?

提前谢谢！

推荐答案

exec()将阻塞，直到您执行的过程完成为止-换句话说，您基本上是将'test.php'作为子程序.至少需要在命令行参数中添加&，这会将exec()处理的进程置于后台:

exec() will block until the process you're exec'ing has completed - in otherwords, you're basically running your 'test.php' as a subroutine. At bare minimum you need to add a & to the command line arguments, which would put that exec()'d process into the background:

exec("php test.php {$test['id']} &");

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