IntlChar::isalnum

(PHP 7, PHP 8)

IntlChar::isalnum — Check if code point is an alphanumeric character

Açıklama

public static IntlChar::isalnum(int|string $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).

Bağımsız Değişkenler

codepoint: int türünde Unicode karakter kodu (örn. U+2603 SNOWMAN için 0x2603) veya string türünde Unicode karakter kodu (örn. "\u{2603}")

Dönen Değerler

Returns true if codepoint is an alphanumeric character, false if not. Returns null on failure.

Örnekler

Örnek 1 Farklı karakter kodlarının denenmesi


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

Yukarıdaki örneğin çıktısı:

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

Ayrıca Bakınız

IntlChar::isalpha() - Check if code point is a letter character
IntlChar::isdigit() - Check if code point is a digit character

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