3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = "\0\0\0\0\0\0\0"; var_export($data); echo "\n\n"; $data = "ok\0\0\0ab"; var_export($data);
Output for 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
'' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' 'ok' . "\0" . '' . "\0" . '' . "\0" . 'ab'
Output for 5.2.0 - 5.2.5
'\000\000\000\000\000\000\000' 'ok\000\000\000ab'
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
'' 'okab'
preferences:
167.41 ms | 409 KiB | 5 Q