3v4l.org

run code in 500+ PHP versions simultaneously
<?php register_shutdown_function(function () { $hookInfo = [function () {}]; $hooks[][] = [$hookInfo]; }); $options = [ 'sort' => [] ]; $defaultOption = ['sort' => []]; $sort = &$options['sort']; $sort['direction'] = 'asc'; $val = array_merge($defaultOption, $options); extract($val); print_r($val);
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.5 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
Array ( [sort] => Array ( [direction] => asc ) )
Output for 7.3.0 - 7.3.1, 7.3.4
Array ( [sort] => Array *RECURSION* )
Process exited with code 139.
Output for 7.3.2 - 7.3.3
Array ( [sort] => Array ( [direction] => asc ) )
Process exited with code 139.

preferences:
107.7 ms | 1529 KiB | 4 Q