Online PHP editor | refs for WHWYg

<?php $arr = array ( 0 => array ( 'N_127y4Gral' => array ( 0 => '302', ), ), 1 => array ( 'N_127y4Gral' => array ( 0 => '288', ), ), 2 => array ( 'N_144y4Gral' => array ( 0 => '317', ), ), 3 => array ( 'N_144y4Gral' => array ( 0 => '307', ), ), 4 => array ( 'N_144y4Gral' => array ( 0 => '332', ), )); foreach($arr as $sub){ foreach($sub as $key => $val){ $res[$key][] = $val[0]; if(!isset($count[$key])){ $count[$key] = 1; }else{ $count[$key]++; } } } $max = max($count); foreach($res as &$subarray){ $subarray = array_merge($subarray, array_fill(0,$max-count($subarray), 0)); } var_dump($res);