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IntlChar::islower

(PHP 7, PHP 8)

IntlChar::islowerCheck if code point is a lowercase letter

Description

public static IntlChar::islower(int|string $codepoint): ?bool

Determines whether the specified code point has the general category "Ll" (lowercase letter).

Note:

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

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 Ll lowercase letter, false if not. Returns null on failure.

Exemples

Exemple #1 Test de différents codepoint

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

L'exemple ci-dessus va afficher :

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

Voir aussi

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