IntlChar::isupper

    (PHP 7, PHP 8)

    IntlChar::isupper — Check if code point has the general category "Lu" (uppercase letter)

    Description

    publicstaticIntlChar::isupper(int|string$codepoint): ?bool

    Determines whether the specified code point has the general category "Lu" (uppercase letter).

    Note:

    This misses some characters that are also uppercase but have a different general category value. In order to include those, use IntlChar::isUUppercase().

    Liste de paramètres

    codepoint

    La valeur codepoint de type entier (i.e. 0x2603 pour U+2603 SNOWMAN), ou le caractère encodé en UTF-8 de type chaîne de caractères (i.e. "\u{2603}")

    Valeurs de retour

    Returns true if codepoint is an Lu uppercase letter, false if not. Returns null on failure.

    Exemples

    Exemple #1 Test de différents codepoint

    <?php
    var_dump    (IntlChar::isupper("A"));
    var_dump(IntlChar::isupper("a"));
    var_dump(IntlChar::isupper("Φ"));
    var_dump(IntlChar::isupper("φ"));
    var_dump(IntlChar::isupper("1"));
    ?>

    L'exemple ci-dessus va afficher :

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

    Voir aussi

    To Top