array_all

    (PHP 8 >= 8.4.0)

    array_all — Checks if all tableau elements satisfy a callback function

    Description

    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.

    Liste de paramètres

    array
    The tableau 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.

    Valeurs de retour

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

    Exemples

    Exemple #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);
    }));
    ?>

    L'exemple ci-dessus va afficher :

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

    Voir aussi

    • array_any() - Checks if at least one tableau element satisfies a callback function
    • array_filter() - Filtre les éléments d'un tableau grâce à une fonction de rappel
    • 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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