IntlChar::isalnum
(PHP 7)
IntlChar::isalnum — Check if code point is an alphanumeric character
Description
public static IntlChar::isalnum ( mixed $codepoint ) : bool
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).
Parameters
-
codepoint -
The int codepoint value (e.g.
0x2603for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g."\u{2603}")
Return Values
Returns true if codepoint is an alphanumeric character, false if not.
Examples
Example #1 Testing different code points
<?php
var_dump(IntlChar::isalnum("A"));
var_dump(IntlChar::isalnum("1"));
var_dump(IntlChar::isalnum("\u{2603}"));
?> The above example will output:
bool(true) bool(true) bool(false)
See Also
- IntlChar::isalpha() - Check if code point is a letter character
- IntlChar::isdigit() - Check if code point is a digit character
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https://www.php.net/manual/en/intlchar.isalnum.php