Same name in other branches

1. 9 core/lib/Drupal/Component/Utility/NestedArray.php \Drupal\Component\Utility\NestedArray::filter()
2. 8.9.x core/lib/Drupal/Component/Utility/NestedArray.php \Drupal\Component\Utility\NestedArray::filter()
3. 10 core/lib/Drupal/Component/Utility/NestedArray.php \Drupal\Component\Utility\NestedArray::filter()

Filters a nested array recursively.

Parameters

array $array: The filtered nested array.

callable|null $callable: The callable to apply for filtering.

Return value

array The filtered array.

2 calls to NestedArray::filter()

NestedArrayTest::testFilter in core/tests/Drupal/Tests/Component/Utility/NestedArrayTest.php

@covers ::filter @dataProvider providerTestFilter

TestDiscovery::getTestClasses in core/lib/Drupal/Core/Test/TestDiscovery.php

Discovers all available tests in all extensions.

File

core/lib/Drupal/Component/Utility/NestedArray.php, line 361

Class

NestedArray

Provides helpers to perform operations on nested arrays and array keys of variable depth.

Namespace

Drupal\Component\Utility

Code

public static function filter(array $array, ?callable $callable = NULL) {
    $array = is_callable($callable) ? array_filter($array, $callable) : array_filter($array);
    foreach ($array as &$element) {
        if (is_array($element)) {
            $element = static::filter($element, $callable);
        }
    }
    return $array;
}

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