3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = range(0, 1000); $keys = array_map(function ($x) { return chr(46+rand(0, 26)) . chr(46+rand(0, 26)) . chr(46+rand(0, 26)) . $x; }, $x); $vars = array_combine($keys, $x); $t = microtime(TRUE); extract($vars); echo sprintf("%.4d", microtime(TRUE) - $t);

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50.23 ms | 402 KiB | 5 Q