Online PHP editor | refs for mSkNJ

<?php function flatten_array($simple){ static $outputs=array(); foreach ( $simple as $value) { if(is_array($value)){ flatten_array($value); } else { $outputs[]=$value; } } return $outputs; } $eg=['s'=>['p','n'=>['t']]]; $out=flatten_array($eg); print_r($out); echo "\n---\n"; $out=flatten_array($eg); print_r($out);