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Dokumen ini menggunakan Manual laman web PHP Cina Lepaskan
(PHP 7)
IntlChar::charDigitValue — Get the decimal digit value of a decimal digit character
$codepoint
)Returns the decimal digit value of a decimal digit character.
Such characters have the general category "Nd" (decimal digit numbers) and a Numeric_Type of Decimal.
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}")
The decimal digit value of codepoint
,
or -1 if it is not a decimal digit character.
Example #1 Testing different code points
<?php
var_dump ( IntlChar :: charDigitValue ( "1" ));
var_dump ( IntlChar :: charDigitValue ( "\u{0662}" ));
var_dump ( IntlChar :: charDigitValue ( "\u{0E53}" ));
?>
以上例程会输出:
int(1) int(2) int(3)