IntlChar::isalnum
(PHP 7)
IntlChar::isalnum — Check if code point is an alphanumeric character
Description
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).
Parameters
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}")
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
← IntlChar::hasBinaryProperty
IntlChar::isalpha →
? 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
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