3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 100; $b = 0; while (\true) { $b = $i*$i; if ($i++ == 50000000) break; } print($i . " - " . $b);
Output for 7.0.0 - 7.0.5, 7.0.11 - 7.0.18, 7.0.26 - 7.0.27, 7.0.29 - 7.0.30, 7.1.0 - 7.1.8, 7.1.10 - 7.1.21, 7.1.24 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.3 - 7.4.12, 7.4.14 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
50000001 - 2500000000000000
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.6 - 7.0.10, 7.0.19 - 7.0.20, 7.0.22 - 7.0.25, 7.0.28, 7.0.31 - 7.0.33, 7.1.9, 7.1.22 - 7.1.23, 7.4.13

Process exited with code 137.
Output for 7.0.21
50000001 - 2500000000000000
Process exited with code 137.
preferences:
185.48 ms | 401 KiB | 338 Q