<?php $start = microtime(true); switch (pcntl_fork()) { case -1: die('problem'); break; case 0: $a = 234325; for ($i = 0; $i < 1000000; ++$i) { // wasting CPU $a *= $i; } break; default: pcntl_wait(); echo "the child took " . (microtime(true) - $start) . " micro seconds"; }
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