3v4l.org

run code in 500+ PHP versions simultaneously
<?php $filename = "ab\0c"; if (strpos($filename, "\0") !== false) { echo "bad filename\n"; }
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
bad filename

preferences:
110.59 ms | 1351 KiB | 4 Q