3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array ( '1' => array ( '1' => (object) array( '2' => (object) array( '1' => '2', ), '1' => (object) array( '1' => (object) array( '1' => (object) array( '1' => false, ), ), ), '2' => (object) array( '1' => '1', ), ), ), ); array_walk_recursive($arr, function(&$item){ if(is_object($item)) $item = (array)$item; }); print_r($arr);
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Array ( [1] => Array ( [1] => Array ( [2] => stdClass Object ( [1] => 1 ) [1] => stdClass Object ( [1] => stdClass Object ( [1] => stdClass Object ( [1] => ) ) ) ) ) )

preferences:
120.55 ms | 1660 KiB | 4 Q