Online PHP editor | refs for YrPR7

<?php $dataArray = array( array( 20800, 21679, 0 ), array( 15254, 0, 3726 ), array( 17426, 2973, 0 ), array( 4391, 37, 0 ), array( 39194, 435, 0 ) ); $position = array(); $binary = array(); foreach ($dataArray as $row => $data) { // if you want to have the positions start at 1 instead of 0 // add a dummy value to the final array $binary[$row][] = 0; foreach ($data as $key => $value) { if($value > 1999) { $binary[$row][] = 1; } else { $binary[$row][] = 0; } } $positions[] = array_keys($binary[$row], 1); } var_dump($positions);