How to compare two array with multiple element to find different

Question

I have two arrays with different size but the same element name. and i want to compare that two arrays to find different element.

$arr_1=array(array('name'=>'john','sex'=>'male','grade'=>'9'),array('name'=>'Smith','sex'=>'male','grade'=>'11'));
$arr_2=array(array('name'=>'john','sex'=>'male','grade'=>'9'),array('name'=>'Smith','sex'=>'male','grade'=>'11'),array('name'=>'Kelly','sex'=>'female','grade'=>'10'));

i want to find the different element between that two arrays and printout the result.

i want output like this

'name'=>'Kelly','sex'=>'female','grade'=>'10'

@vivek_23 i just update my question i want to show like that — Rajes, Aug 13 '19 at 07:48

mare96 · Answer 1 · 2019-08-13T08:01:40.940

3

You can use php function array_diff().

Because you have nasted array, you can use like this.

edited Aug 13 '19 at 08:01

answered Aug 13 '19 at 07:47

mare96

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1

Array to string conversion – Rajes Aug 13 '19 at 07:51
Wait you need your output like array or string? – mare96 Aug 13 '19 at 07:56
i want output as array – Rajes Aug 13 '19 at 07:57

score 2 · Accepted Answer · answered Aug 13 '19 at 07:59

Use array_udiff instead of array_diff, check the demo

$arr_1=array(array('name'=>'john','sex'=>'male','grade'=>'9'),array('name'=>'Smith','sex'=>'male','grade'=>'11'));
$arr_2=array(array('name'=>'john','sex'=>'male','grade'=>'9'),array('name'=>'Smith','sex'=>'male','grade'=>'11'),array('name'=>'Kelly','sex'=>'female','grade'=>'10'));
function udiff($a, $b)
{
    return ($name_diff = strcmp($a["name"],$b["name"])) ? $name_diff : (($sex_diff = strcmp($a["sex"],$b["sex"])) ? $sex_diff : (strcmp($a["grade"],$b["grade"])));
}

$arrdiff = array_udiff($arr_2, $arr_1, 'udiff');
print_r($arrdiff);

score 1 · Answer 3 · answered Aug 13 '19 at 08:08

Another way of doing it using array_diff and array_map.

<?php

$arr_1=array(array('name'=>'john','sex'=>'male','grade'=>'9'),array('name'=>'Smith','sex'=>'male','grade'=>'11'));
$arr_2=array(array('name'=>'john','sex'=>'male','grade'=>'9'),array('name'=>'Smith','sex'=>'male','grade'=>'11'),array('name'=>'Kelly','sex'=>'female','grade'=>'10'));

$c1 = array_map("customImplode",$arr_1);
$c2 = array_map("customImplode",$arr_2);

function customImplode($data){
    return implode("|",$data);
}

function customExplode($data){
    return explode("|",$data);
}

$result = array_map("customExplode",array_unique(array_merge(array_diff($c1,$c2),array_diff($c2,$c1))));

echo "<pre>";
print_r($result);

Demo: https://3v4l.org/ULtdp

Note that the comparison here is case sensitive.

How to compare two array with multiple element to find different

3 Answers3