3v4l.org

run code in 500+ PHP versions simultaneously
<?php $data = array_map( Closure::fromCallable('trim'), [' x', 'z '] ); var_dump($data);
Output for 8.1.32 - 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
array(2) { [0]=> string(1) "x" [1]=> string(1) "z" }
preferences:
59.5 ms | 871 KiB | 4 Q