Nov 21
Функция IntlChar::isdigit() - Check if code point is a digit character

IntlChar::isdefined

IntlChar::isgraph

IntlChar::isdigit

(PHP 7)

IntlChar::isdigit — Check if code point is a digit character

Описание

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

Determines whether the specified code point is a digit character.

TRUE for characters with general category "Nd" (decimal digit numbers). Beginning with Unicode 4, this is the same as testing for the Numeric_Type of Decimal.

Список параметров

codepoint: The integer codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")

Возвращаемые значения

Returns TRUE if codepoint is a digit character, FALSE if not.

Примеры

Пример #1 Testing different code points


<?php
var_dump(IntlChar::isdigit("A"));
var_dump(IntlChar::isdigit("1"));
var_dump(IntlChar::isdigit("\t"));
?>

Результат выполнения данного примера:

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

Смотрите также

IntlChar::isalpha() - Check if code point is a letter character
IntlChar::isalnum() - Check if code point is an alphanumeric character
IntlChar::isxdigit() - Check if code point is a hexadecimal digit

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IntlChar::isdefined

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