How to compare and get the difference between 2 multidim arrays

[shishicruz]

Could somebody pls help me with this.

I have 2 arrays arr1 and arr2

<?php

$arr1[0]['name'] = "Ben";

$arr1[0]['level'] = "3";

$arr1[0]['age'] = "10";

$arr1[0]['gender'] = "M";

$arr1[1]['name'] = "Chris";

$arr1[1]['level'] = "12";

$arr1[1]['age'] = "4";

$arr1[1]['gender'] = "F";

 

 

$arr2[0]['name'] = "Jack";

$arr2[0]['grade_level'] = "3";

$arr2[0]['age'] = "10";

$arr2[0]['gender'] = "F";

$arr2[1]['name'] = "Lily";

$arr2[1]['level'] = "2";

$arr2[1]['age'] = "7";

$arr2[1]['gender'] = "F";

$arr2[2]['name'] = "Chris";

$arr2[2]['level'] = "12";

$arr2[2]['age'] = "4";

$arr2[2]['gender'] = "M";

?>

I need to compare the difference between arr1 and arr2 (and vice versa) on entries that have the same level and age values and return/highlight the columns that didn't match.

ex: Ben->3->10->M in arr1 will be compared to

A.1 Jack->3->10->F in arr2 because they have the same level and age values

 

Chris->12->4->F in arr1 will be compared to

A.2 Chris->12->4->M in arr2 because they have the same level and age values

I should be able to know which columns didn't match

for A.1 the return should be name & gender

for A.2 the return should be gender

Desired output:

I have tried array_diff and several array functions & manipulations but i can't come up with the desired result Pls help. Thanks!

[Barand]

Does this get you on your way?

 

$arr1[0]['name'] = "Ben";
$arr1[0]['level'] = "3";
$arr1[0]['age'] = "10";
$arr1[0]['gender'] = "M";
$arr1[1]['name'] = "Chris";
$arr1[1]['level'] = "12";
$arr1[1]['age'] = "4";
$arr1[1]['gender'] = "F";


$arr2[0]['name'] = "Jack";
$arr2[0]['level'] = "3";   // changed "grade_level" to "level
$arr2[0]['age'] = "10";
$arr2[0]['gender'] = "F";
$arr2[1]['name'] = "Lily";
$arr2[1]['level'] = "2";
$arr2[1]['age'] = "7";
$arr2[1]['gender'] = "F";
$arr2[2]['name'] = "Chris";
$arr2[2]['level'] = "12";
$arr2[2]['age'] = "4";
$arr2[2]['gender'] = "M";

$arr3 = $arr4 = array();

foreach ($arr1 as $id => $data) {
   $arr3["{$data['level']}-{$data['age']}"]['Arr1'] = array ($data['name'],$data['gender']);
}
foreach ($arr2 as $id => $data) {
   $arr3["{$data['level']}-{$data['age']}"]['Arr2'] = array ($data['name'],$data['gender']);
}

echo '<pre>',print_r($arr3, true),'</pre>';