3v4l.org

run code in 300+ PHP versions simultaneously
<?php parse_str('key&key2&key3', $result); var_dump($result);#;
Output for 7.0.0 - 7.0.23, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
array(3) { ["key"]=> string(0) "" ["key2"]=> string(0) "" ["key3"]=> string(0) "" }
preferences:
121.9 ms | 404 KiB | 179 Q