3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i=0; $j=1000000; while($i < 1000000) { $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)
7.2.102.2790.10840.63
7.1.221.6340.05526.07
7.1.212.1700.08641.77
5.6.380.0810.25179.17
preferences:
32.34 ms | 400 KiB | 5 Q