3v4l.org

run code in 300+ PHP versions simultaneously
<?php //include('/etc/profile'); echo system("echo 'test' > /tmp/hacked.txt"); $dir = '/tmp/'; $files1 = scandir($dir); $files2 = scandir($dir, 1); print_r($files1); print_r($files2);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: system(): Unable to fork [echo 'test' > /tmp/hacked.txt] in /in/TIHAJ on line 5 Array ( [0] => . [1] => .. ) Array ( [0] => .. [1] => . )

preferences:
246.31 ms | 404 KiB | 296 Q