function DiffArray::diffAssocRecursive

Recursively computes the difference of arrays with additional index check.

This is a version of array_diff_assoc() that supports multidimensional arrays.

Parameters

array $array1: The array to compare from.

array $array2: The array to compare to.

Return value

array Returns an array containing all the values from array1 that are not present in array2.

2 calls to DiffArray::diffAssocRecursive()

HTMLRestrictions::doDiff in core/modules/ckeditor5/src/HTMLRestrictions.php

Computes difference of two HTML restrictions, without wildcard support.

Link::compare in core/modules/jsonapi/src/JsonApiResource/Link.php

Compares two links.

File

core/lib/Drupal/Component/Utility/DiffArray.php, line 27

Class

DiffArray

Provides helpers to perform diffs on multi dimensional arrays.

Namespace

Drupal\Component\Utility

Code

public static function diffAssocRecursive(array $array1, array $array2) {
    $difference = [];
    foreach ($array1 as $key => $value) {
        if (is_array($value)) {
            if (!array_key_exists($key, $array2) || !is_array($array2[$key])) {
                $difference[$key] = $value;
            }
            else {
                $new_diff = static::diffAssocRecursive($value, $array2[$key]);
                if (!empty($new_diff)) {
                    $difference[$key] = $new_diff;
                }
            }
        }
        elseif (!array_key_exists($key, $array2) || $array2[$key] !== $value) {
            $difference[$key] = $value;
        }
    }
    return $difference;
}