Online PHP editor | refs for WOG6s

<?php $array[0][0] = "a"; $array[0][1] = "b"; $array[0][2] = "c"; //1 echo implode(",", $array[0]); //2 echo implode(",", array_map(function($v){ return implode(",", $v); }, $array)); //3 $it = new RecursiveArrayIterator($array); foreach ($it as $v) echo $v; //4 array_walk_recursive($array, function($v, $k){ echo $v . "<br>"; }); //5 foreach($array[0] as $v) echo $v; //6 foreach($array as $ia){ foreach($ia as $v) echo $v; }