3v4l.org

run code in 300+ PHP versions simultaneously
<?php $limit = 8434; $string = 'a'; for ( $i = 0; $i <= $limit; $i++ ) { $string .= 'a'; } echo strlen($string)."\n"; $str2=preg_replace('#(?<name>.)*#', '', $string); echo 'done';
Output for 5.4.0 - 5.4.8, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
8436 done
Output for 5.4.9 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
8436
Process exited with code 139.
preferences:
248.85 ms | 402 KiB | 376 Q