PHP compare array and return the different - php

Question

I have two arrays with data in them and I need to compare the two and return the array that are not matched.
I have two arrays that both look like this:
$arr1 = array(
array('name' => 'Alan', 'age' => '34', 'country' => 'usa'),
array('name' => 'James', 'age' => '24', 'country' => 'spain' ),
);
$arr2 = array(
array('name' => 'Alan', 'age' => '34', 'country' => 'usa'),
array('name' => 'James', 'age' => '54', 'country' => 'spffain' ),
);
i would like comparing the array by name,age and country and return me the array that are not matched.
my code so far:
$intersect = array_uintersect($arr1, $arr2, 'compareDeepValue');
echo "<pre>", print_r($intersect);
function compareDeepValue($val1, $val2)
{
return strcmp($val1['age'], $val2['age']);
return strcmp($val1['country'], $val2['country']);
return strcmp($val1['name'], $val2['name']);
}
The code above return the array that are matched. How can i changed the code in order to get the array that are not matched?
EXPECTED OUTPUT:
Array
(
[0] => Array
(
[name] => James
[age] => 21
[country] => spain
)
)

Answer 1

The code mentioned by someone in answers will work, but it's manual labor :)
You could use existing functions to do the job for you. For computing the difference between arrays, you should use array_udiff function (or functions related).
You should write function to compare arrays, and use it to compute the difference, like this:
<?php
$arr1 = array(
array('name' => 'Alan', 'age' => '34', 'country' => 'usa'),
array('name' => 'James', 'age' => '24', 'country' => 'spain' ),
);
$arr2 = array(
array('name' => 'Alan', 'age' => '34', 'country' => 'usa'),
array('name' => 'James', 'age' => '54', 'country' => 'spffain' ),
);
// this function checks if 2 arrays with keys and scalar values are the same
function array_same_check($deepArr1, $deepArr2) {
//check if arrays are the same
$diffArr = array_diff_assoc($deepArr1, $deepArr2);
//if $diffArr has 0 elements - arrays are the same
if (count($diffArr) === 0) {
return 0;
}
// arrays are not the same - return arbitratry 1 or -1
return 1;
}
// now let's compare $arr1 and $arr2 you have
// (meaning: compare the difference between arrays containing arrays) - we use function above
$differing = array_udiff ($arr1, $arr2, 'array_same_check');
print_r($differing);
I copied this code to PHPFiddle and it seems to work as expected.

Answer 2

Your Arrays:
$arr1 = array(
array('name' => 'Alan', 'age' => '34', 'country' => 'usa'),
array('name' => 'James', 'age' => '24', 'country' => 'spain' ),
);
$arr2 = array(
array('name' => 'Alan', 'age' => '34', 'country' => 'usa'),
array('name' => 'James', 'age' => '54', 'country' => 'spffain' ),
);
foreach($arr1 as $key=>$arr)
{
$bool = true;
$ar1 = $arr;
$ar2 = $arr2[$key];
foreach($ar1 as $ky=>$val)
{
if($val != $ar2[$ky])
{
$bool = false;
break;
}
}
if(!$bool)
{
echo "Unmatched Arrays: \r\n";
print_r($ar1); echo " in Main Array 1 & \r\n";
print_r($ar2); echo " in Main Array 2. \r\n";
}
}

Answer 3

try this one
$arr1 = array(
array('name' => 'Alan', 'age' => '34', 'country' => 'usa'),
array('name' => 'James', 'age' => '24', 'country' => 'spain' ),
);
$arr2 = array(
array('name' => 'Alan', 'age' => '34', 'country' => 'usa'),
array('name' => 'James', 'age' => '54', 'country' => 'spffain' ),
);
$tmpArray = array();
foreach($arr1 as $data1) {
$duplicate = false;
foreach($arr2 as $data2) {
if($data1['name'] === $data2['name'] && $data1['age'] === $data2['age'] && $data1['country'] === $data2['country']) $duplicate = true;
}
if($duplicate === false) $tmpArray[] = $data1;
}
echo "<pre>", print_r($tmpArray);

Answer 4

$intersect = array_uintersect($arr1, $arr2, 'compareDeepValue');
print_r($intersect);
// add this and it will return the missing array.
print_r(array_diff_key($arr1, $intersect));
function compareDeepValue($val1, $val2)
{
return strcmp($val1['age'], $val2['age']);
return strcmp($val1['country'], $val2['country']);
return strcmp($val1['name'], $val2['name']);
}

Answer 5

I would like to give you another possible solution. I've checked the code and it seems to fit your needs.
/** #var array $arr1 */
$arr1 = array(
array(
'name' => 'Alan',
'age' => '34',
'country' => 'usa'
),
array(
'name' => 'James',
'age' => '24',
'country' => 'spain'
),
);
/** #var array $arr2 */
$arr2 = array(
array(
'name' => 'Alan',
'age' => '34',
'country' => 'usa'
),
array(
'name' => 'James',
'age' => '54',
'country' => 'spffain'
),
);
/** #var array $notMatched */
$notMatched = array();
/**
* #var int $index
* #var array $element
*/
foreach($arr1 as $index => $element) {
/**
* #var string $key
* #var string $value
*/
foreach($element as $key => $value) {
if($arr2[$index][$key] !== $value) {
$notMatched["arr1"] = $arr1[$index];
$notMatched["arr2"] = $arr2[$index];
}
}
}
if(!empty($notMatched)) {
echo "Unmatched arrays: \r\n";
echo "Array 1:\r\n";
print_r($notMatched["arr1"]);
echo "Array 2:\r\n";
print_r($notMatched["arr2"]);
}