IntlChar
PHP Manual

IntlChar::isalnum

(PHP 7)

IntlChar::isalnumCheck if code point is an alphanumeric character

Beschreibung

public static bool IntlChar::isalnum ( mixed $codepoint )

Determines whether the specified code point is an alphanumeric character (letter or digit). TRUE for characters with general categories "L" (letters) and "Nd" (decimal digit numbers).

Parameter-Liste

codepoint

The integer codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")

Rückgabewerte

Returns TRUE if codepoint is an alphanumeric character, FALSE if not.

Beispiele

Beispiel #1 Testing different code points

<?php
var_dump
(IntlChar::isalnum("A"));
var_dump(IntlChar::isalnum("1"));
var_dump(IntlChar::isalnum("\u{2603}"));
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

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

Siehe auch


IntlChar
PHP Manual