Online PHP editor | refs for pTQns

<?php $ar_val="134567,dogs,food,EEUU"; $ar_url="134567,dogs,toys,EEUU"; $arrayVal = explode(',', $ar_val); $arrayUrl = explode(',', $ar_url); $maxLength = max(sizeof($arrayVal), sizeof($arrayUrl)); $arrayIdsEqual = array(); $arrayIdsDifferent = array(); for ($i = 0; $i < $maxLength; $i++) { if (isset($arrayVal[$i]) && isset($arrayUrl[$i])) { if ($arrayVal[$i] == $arrayUrl[$i]) { $arrayIdsEqual[] = $i; } else { $arrayIdsDifferent[] = $i; } } else { //you arrive here if you have 2 arrays that don't have the same size / sme number of variables } } //assuming your 2 arrays ALWAYS have the same size, you can use the following logic if (empty($arrayIdsDifferent)) { echo '2 arrays are the same'; } else { echo "Differences: \n"; foreach ($arrayIdsDifferent as $indexDifferent => $currentIdDifferent) { $output = 'difference ' . ($indexDifferent + 1) . ': '; $output .= 'val = ' . $arrayVal[$currentIdDifferent]; $output .= '; '; $output .= 'url = ' . $arrayUrl[$currentIdDifferent]; echo $output; echo "\n"; } }