IntlChar::isIDPart

(PHP 7, PHP 8)

IntlChar::isIDPart — Check if code point is permissible in an identifier

Description

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

Determines if the specified character is permissible in an identifier.

true for characters with general categories "L" (letters), "Nl" (letter numbers), "Nd" (decimal digits), "Mc" and "Mn" (combining marks), "Pc" (connecting punctuation), and u_isIDIgnorable(c).

Note:

This is almost the same as Unicode's ID_Continue (IntlChar::PROPERTY_ID_CONTINUE) except that Unicode recommends to ignore Cf which is less than IntlChar::isIDIgnorable().

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 the code point may occur in an identifier, false if not. Returns null on failure.

Exemples

Exemple #1 Test de différents codepoint

<?php
var_dump(IntlChar::isIDPart("A"));
var_dump(IntlChar::isIDPart("$"));
var_dump(IntlChar::isIDPart("\n"));
var_dump(IntlChar::isIDPart("\u{2603}"));
?>

L'exemple ci-dessus va afficher :

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

Voir aussi