3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo '<pre>'; // Outputs all the result of shellcommand "ls", and returns // the last output line into $last_line. Stores the return value // of the shell command in $retval. $last_line = system('ls', $retval); // Printing additional info echo ' </pre> <hr />Last line of the output: ' . $last_line . ' <hr />Return value: ' . $retval;
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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<pre> Warning: system(): Unable to fork [ls] in /in/5hsnd on line 7 </pre> <hr />Last line of the output: <hr />Return value: -1
Output for 4.3.0, 5.4.42 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.24, 7.3.0 - 7.3.12, 7.4.0
<pre> </pre> <hr />Last line of the output: <hr />Return value: 127
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, 5.4.0 - 5.4.41
<pre> </pre> <hr />Last line of the output: <hr />Return value: 127sh: 1: ls: not found

preferences:
265.41 ms | 403 KiB | 357 Q