3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "Starting program\n"; $x = 0; while(++$x < 10) { echo '$x = ' . $x . "\n"; $y = 0; while(++$y < 10) { if($y == 5) break 2; echo '$y = ' . $y . "\n"; } } ?>
Output for 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.5 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 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
Starting program $x = 1 $y = 1 $y = 2 $y = 3 $y = 4
preferences:
199.74 ms | 403 KiB | 220 Q