3v4l.org

run code in 300+ PHP versions simultaneously
<?php $domain = 'https://kgopen.baidu.com/user/noinfo?code=2'; //$ip = escapeshellcmd($domain); //echo $ip.'\n'; $domain = "`ls`"; $ip = escapeshellarg($domain); echo $domain;
Output for 7.0.0 - 7.0.25, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
`ls`

preferences:
181.82 ms | 403 KiB | 207 Q