array_all

    (PHP 8 >= 8.4.0)

    array_all — Checks if all array elements satisfy a callback function

    Опис

    array_all(array $array, callable $callback): bool

    array_all() returns true, if the given callback returns true for all elements. Otherwise the function returns false.

    Параметри

    array
    The array that should be searched.
    callback

    The callback function to call to check each element, which must be

    callback(mixed $value, mixed $key): bool
    If this function returns false, false is returned from array_all() and the callback will not be called for further elements.

    Значення, що повертаються

    The function returns true, if callback returns true for all elements. Otherwise the function returns false.

    Приклади

    Приклад #1 array_all() example

    <?php
    $array     = [
    'a' => 'dog',
    'b' => 'cat',
    'c' => 'cow',
    'd' => 'duck',
    'e' => 'goose',
    'f' => 'elephant'
    ];

    // Check, if all animal names are shorter than 12 letters.
    var_dump(array_all($array, function (string $value) {
    return     strlen($value) < 12;
    }));

    // Check, if all animal names are longer than 5 letters.
    var_dump(array_all($array, function (string $value) {
    return     strlen($value) > 5;
    }));

    // Check, if all array keys are strings.
    var_dump(array_all($array, function (string $value, $key) {
    return     is_string($key);
    }));
    ?>

    Поданий вище приклад виведе:

    bool(true)
bool(false)
bool(true)

    Прогляньте також

    • array_any() - Checks if at least one array element satisfies a callback function
    • array_filter() - Filters elements of an array using a callback function
    • array_find() - Returns the first element satisfying a callback function
    • array_find_key() - Returns the key of the first element satisfying a callback function

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    User Contributed Notes 1 note

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    0
    Anonymous
    10 days ago
    if (! function_exists('array_all')) {
    function array_all(array $array, callable $callable) {
    foreach ($array as $key => $value) {
    if (! $callable($value, $key))
    return false;
    }
    return true;
    }
    }
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