(PHP 7)
IntlChar::charDigitValue — Get the decimal digit value of a decimal digit character
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.
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)