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<?php
namespace WebTheory\Collection\Comparison\Abstracts;
use WebTheory\Collection\Contracts\CollectionComparatorInterface;
abstract class AbstractCollectionComparator implements CollectionComparatorInterface
{
public function notIn(array $array, array $values): array
return array_udiff($array, $values, $this->getComparisonFunction());
}
public function difference(array $array1, array $array2): array
return [
...$this->notIn($array1, $array2),
...$this->notIn($array2, $array1),
];
public function intersection($array, $values): array
return array_uintersect($array, $values, $this->getComparisonFunction());
public function matches(array $array1, array $array2): bool
return empty($this->difference($array1, $array2));
protected function stripDuplicates(array $array): array
return array_unique($array, SORT_REGULAR);
protected function whatEvenIsThis(array $a, array $b): array
/*
if both primary and secondary are empty this will return false
because the "array_diff" family of functions returns an empty array
if the first array provided is empty itself. if both arrays are
empty this will return an empty array as there is no difference.
*/
return !empty($a)
? $this->notIn($a, $b)
: $this->notIn($b, $a);
spider-mane /
collection
