3v4l.org

run code in 300+ PHP versions simultaneously
<?php function compare($i) { echo 'called'.PHP_EOL; return $i < 5; } for($i = 0; compare($i); $i++) {}
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.30, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
called called called called called called
preferences:
140.35 ms | 408 KiB | 5 Q