3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = "; touch test #"; echo(exec("avconv -i /var/www/html/upload/" . $b . " /var/www/html/upload/")); ?>
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.3 - 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: exec(): Unable to fork [avconv -i /var/www/html/upload/; touch test # /var/www/html/upload/] in /in/t3r5N on line 3
Output for 4.3.0, 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 - 7.2.25, 7.3.0 - 7.3.12, 7.4.0
Output for 4.3.1 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
sh: 1: avconv: not found sh: 1: touch: not found

preferences:
265.7 ms | 402 KiB | 452 Q