PHP 8.3.4 Released!

IntlChar::isdefined

(PHP 7, PHP 8)

IntlChar::isdefinedCheck whether the code point is defined

Description

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

Determines whether the specified code point is "defined", which usually means that it is assigned a character.

true for general categories other than "Cn" (other, not assigned).

Note:

Note that non-character code points (e.g., U+FDD0) are not "defined" (they are Cn), but surrogate code points are "defined" (Cs).

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 a defined character, false if not. Returns null on failure.

Exemples

Exemple #1 Test de différents codepoint

<?php
var_dump
(IntlChar::isdefined("A"));
var_dump(IntlChar::isdefined(" "));
var_dump(IntlChar::isdefined("\u{FDD0}"));
?>

L'exemple ci-dessus va afficher :

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

Voir aussi

add a note

User Contributed Notes

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