3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i=0; $j=500000; while($i < 600000) { $i++; $j++; $data1[] = md5($i); $data2[] = md5($j); } $time = microtime(true); echo "Starting array_diff\n"; $data_diff1 = array_diff($data1, $data2); $time = microtime(true) - $time; echo 'array_diff() took ' . number_format($time, 3) . ' seconds and returned ' . count($data_diff1) . " entries\n";

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.2.101.1660.02621.52
7.1.221.2930.07234.15
7.1.211.4470.06833.95
5.6.380.0640.28678.70

preferences:
32.38 ms | 400 KiB | 5 Q