33 lines
1.0 KiB
PHP
33 lines
1.0 KiB
PHP
<?php
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namespace App\Utility\Utils;
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// src: https://www.php.net/manual/en/function.array-diff.php#91756
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function array_diff_recursive($arr1, $arr2)
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{
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$outputDiff = [];
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foreach ($arr1 as $key => $value) {
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//if the key exists in the second array, recursively call this function
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//if it is an array, otherwise check if the value is in arr2
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if (array_key_exists($key, $arr2)) {
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if (is_array($value)) {
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$recursiveDiff = array_diff_recursive($value, $arr2[$key]);
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if (count($recursiveDiff)) {
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$outputDiff[$key] = $recursiveDiff;
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}
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} else if (!in_array($value, $arr2)) {
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$outputDiff[$key] = $value;
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}
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}
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//if the key is not in the second array, check if the value is in
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//the second array (this is a quirk of how array_diff works)
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else if (!in_array($value, $arr2)) {
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$outputDiff[$key] = $value;
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}
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}
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return $outputDiff;
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}
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