3v4l.org

run code in 500+ PHP versions simultaneously
<?php $name1 = 'Bob'; ['name'=> $name2] = ['name'=>$name1]; var_dump($name2);
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
string(3) "Bob"
preferences:
56.9 ms | 1012 KiB | 4 Q