3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i=0; $j=500000; while($i < 60000) { $i++; $j++; $data1[] = md5($i); $data2[] = md5($j); } $key = md5(1); $time = microtime(true); echo "Starting\n"; $test = isset($data1[$key]); $time = microtime(true) - $time; echo ' took ' . number_format($time, 3) . " seconds\n";
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.1 - 5.3.29, 5.4.0 - 5.4.42, 5.4.44 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.24, 7.3.0 - 7.3.12
Starting took 0.000 seconds
Output for 5.4.43
Starting took 0.005 seconds
Output for 5.3.0
Starting took 0.009 seconds

preferences:
139.35 ms | 401 KiB | 220 Q