(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)