3v4l.org

run code in 500+ PHP versions simultaneously
<?php $stuff = array('germany', 'java', 'help', array('hello', 'help', array('save', 'me', 'python'))); echo recurrsiveTraverseArray($stuff); function recurrsiveTraverseArray($arr, $html=null){ $html = '<ul>'; foreach($arr as $v){ if(is_array($v)){ $html .= recurrsiveTraverseArray($v, $html); }else{ $html .= '<li>'.$v.'</li>'; } } $html .= '</ul>'; return $html; }
Output for 7.1.25 - 7.1.30, 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
<ul><li>germany</li><li>java</li><li>help</li><ul><li>hello</li><li>help</li><ul><li>save</li><li>me</li><li>python</li></ul></ul></ul>
preferences:
116.95 ms | 1449 KiB | 4 Q