(PHP 7, PHP 8)
IntlChar::isalnum — Check if code point is an alphanumeric character
$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).
codepoint
int türünde Unicode karakter kodu (örn. U+2603
SNOWMAN için 0x2603) veya string
türünde Unicode karakter kodu (örn. "\u{2603}")
Returns true if
codepoint is an alphanumeric character, false if not. Returns null on failure.
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)