IntlChar::isxdigit
IntlChar::isxdigit
(PHP 7)
IntlChar::isxdigit — Check if code point is a hexadecimal digit
Description
public static bool IntlChar::isxdigit ( mixed $codepoint )
Determines whether the specified code point is a hexadecimal digit.
TRUE for characters with general category "Nd" (decimal digit numbers) as well as Latin letters a-f and A-F in both ASCII and Fullwidth ASCII. (That is, for letters with code points 0041..0046, 0061..0066, FF21..FF26, FF41..FF46.)
This is equivalent to IntlChar::digit($codepoint, 16) >= 0.
