How to differentiate 2 multidimensional arrays?

You can use the following code:

public static function check_diff_multi($array1, $array2){        //Get all the Keys from the 2nd Array.        $keys = array();        foreach( $array2 as $key => $a ) {            $keys = array_merge( $keys, array_keys( $a ));        }        //This will be the final array        $result = array();         //Loop through First Array        foreach( $array1 as $key => $a ) {            $firstKey = key($a);  //Get the Key            if( in_array( $firstKey, $keys ) ) {  //If this key exists in the 2nd array, then continue                continue;            }            $result[] = $array1[$key]; //This key is not present in 2nd array, so add to output.        }        return $result;    }

Please try to use like this $aray1 = Array ([0] => Array ( [Notifications] => /LMS/Notifications )[1] => Array ( [Clients] => /LMS/Clients )[2] => Array ( [Penalties] => /LMS/Penalties )[3] => Array ( [Payments] => /LMS/Payments )[4] => Array ( [Collection] => )[5] => Array ( [Missed Payments] => )[6] => Array ( [Applied Penalties] => ));$aray2 = Array ([0] => Array ( [Dashboard] => /LMS/Dashboard )[1] => Array ( [Notifications] => /LMS/Notifications )[2] => Array ( [Clients] => /LMS/Clients )[3] => Array ( [Penalties] => /LMS/Penalties )[4] => Array ( [Payments] => /LMS/Payments )[5] => Array ( [Profit] => /LMS/Profit )[6] => Array ( [Income] => /LMS/Income )[7] => Array ( [Outcome] => /LMS/Outcome )[8] => Array ( [Accounts] => /LMS/Accounts )[9] => Array ( [Collection] => )[10] => Array ( [Missed Payments] => )[11] => Array ( [Applied Penalties] => )[12] => Array ( [Group Names] => /LMS/Group-Names ));$printResult = get_diff_array($aray1, $aray2);function get_diff_array($aray1, $aray2) {    $arrayResult = [];    foreach ($aray1 as $key => $val) {        if (isset($aray2[$key])) {            if (is_array($val) && $aray2[$key]) {                $arrayResult[$key] = get_diff_array($val, $aray2[$key]);            }        } else {            $arrayResult[$key] = $val;        }    }    return $arrayResult;}

Please try this cose:

public static function diffArray($array1,$array2){    $flag=0;        foreach($array1 as $key1 => $value1){            foreach ($array2 as $key2 => $value2) {                if($key1==$key2)                    $flag++;            }            if($flag==0)                $array3[$key1]=$value1;            $flag=0;        }    return $array3;}

Your output will be:

Array(    [Dashboard] => /LMS/Dashboard    [Profit] => /LMS/Profit    [Income] => /LMS/Income    [Outcome] => /LMS/Outcome    [Accounts] => /LMS/Accounts    [Group Names] => /LMS/Group-Names)