3v4l.org

run code in 500+ PHP versions simultaneously
<?php function menu_block_tree_output() { return 'Menu!'; } $config['display_empty'] = TRUE; $tree = array(1); if (!empty($tree) && $output = menu_block_tree_output($tree, $config) || !empty($config['display_empty'])) { if ($output) { echo $output; } } if (!empty($tree) || !empty($config['display_empty'])) { if ($output = menu_block_tree_output($tree, $config)) { echo $output; } }
Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 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
1Menu!
preferences:
106.17 ms | 1773 KiB | 4 Q