3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Source: https://bugs.php.net/bug.php?id=47643 $i=0; $j=500000; while($i < 60000) { $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";

preferences:
34.58 ms | 402 KiB | 5 Q