IntlChar::isIDPart
(PHP 7, PHP 8)
IntlChar::isIDPart — Check if code point is permissible in an identifier
Beschreibung
$codepoint): ?boolDetermines if the specified character is permissible in an identifier.
true for characters with general categories "L" (letters), "Nl" (letter numbers), "Nd" (decimal digits),
"Mc" and "Mn" (combining marks), "Pc" (connecting punctuation), and u_isIDIgnorable(c).
Hinweis:
This is almost the same as Unicode's ID_Continue (
IntlChar::PROPERTY_ID_CONTINUE) except that Unicode recommends to ignore Cf which is less than IntlChar::isIDIgnorable().
Parameter-Liste
-
codepoint -
Der int-Wert des Codepoints (z. B.
0x2603für U+2603 SNOWMAN) oder das Zeichen als UTF-8-String kodiert (z.B."\u").
Rückgabewerte
Returns true if
codepoint is the code point may occur in an identifier, false if not. Returns null on failure.
Beispiele
Beispiel #1 Testen unterschiedlicher Codepoints
<?php
var_dump(IntlChar::isIDPart("A"));
var_dump(IntlChar::isIDPart("$"));
var_dump(IntlChar::isIDPart("\n"));
var_dump(IntlChar::isIDPart("\u"));
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
bool(true) bool(false) bool(false) bool(false)
Siehe auch
- IntlChar::isIDIgnorable() - Check if code point is an ignorable character
- IntlChar::isIDStart() - Check if code point is permissible as the first character in an identifier
IntlChar::PROPERTY_ID_CONTINUE
