3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "'"; $s2 = var_export($s); echo $s2 . "\n"; echo ' '; //echo stripslashes($s2) . "\n";
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 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 - 5.6.40, 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
'\''
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/JWPfB on line 6
Process exited with code 255.
preferences:
258.58 ms | 401 KiB | 460 Q