PHP 8.4.2 Released!

    array_all

    (PHP 8 >= 8.4.0)

    array_all — Checks if all array elements satisfy a callback function

    Descrizione

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

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

    Elenco dei parametri

    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.

    Valori restituiti

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

    Esempi

    Example #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);
    }));
    ?>

    Il precedente esempio visualizzerà:

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

    Vedere anche:

    • array_any() - Checks if at least one array element satisfies a callback function
    • array_filter() - Filtra gli elementi di un array usando una funzione callback
    • array_find() - Returns the first element satisfying a callback function
    • array_find_key() - Returns the key of the first element satisfying a callback function

    Found A Problem?

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top