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 - 8.2.32, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0 - 8.5.8
string(3) "Bob"

preferences:
65.53 ms | 1028 KiB | 4 Q