3v4l.org

run code in 300+ PHP versions simultaneously
<?php $t = microtime(true); var_dump(!preg_match('/^[^\:]++(\:[^\:]++)*$/', '12345678901234567890:12345678901234567890')); return (microtime(true) - $t);
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, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
bool(false)
preferences:
147.97 ms | 404 KiB | 215 Q