PHP 8.1.0 RC 4 available for testing

IntlChar::isxdigit

(PHP 7, PHP 8)

IntlChar::isxdigitCheck if code point is a hexadecimal digit

Açıklama

public static IntlChar::isxdigit(mixed $codepoint): bool

Determines whether the specified code point is a hexadecimal digit.

true for characters with general category "Nd" (decimal digit numbers) as well as Latin letters a-f and A-F in both ASCII and Fullwidth ASCII. (That is, for letters with code points 0041..0046, 0061..0066, FF21..FF26, FF41..FF46.)

This is equivalent to IntlChar::digit($codepoint, 16) >= 0.

Değiştirgeler

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 a hexadecimal character, false if not.

Örnekler

Örnek 1 Farklı karakter kodlarının denenmesi

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

Yukarıdaki örneğin çıktısı:

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

Notlar

Bilginize:

In order to narrow the definition of hexadecimal digits to only ASCII characters use:

<?php
$isASCIIHexadecimal 
IntlChar::ord($codepoint) <= 0x7F && IntlChar::isxdigit($codepoint);
?>

Ayrıca Bakınız

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top