IntlChar::isdefined

(PHP 7)

IntlChar::isdefinedCheck whether the code point is defined

Description

public static IntlChar::isdefined ( mixed $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 integer (i.e. 0x2603 pour U+2603 SNOWMAN), ou le caractère encodé en UTF-8 de type string (i.e. "\u{2603}")

Valeurs de retour

Returns TRUE if codepoint is a defined character, FALSE if not.

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)

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