update : 2015.11.03
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Check if code point is an alphanumeric character

IntlChar::isalnum

(PHP 7)

IntlChar::isalnumCheck if code point is an alphanumeric character

설명

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).

인수

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}")

반환값

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

예제

Example #1 Testing different code points

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

위 예제의 출력:

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

참고