IntlChar::forDigit()

版本：php7

(PHP 7)

Get character representation for a given digit and radix

说明

publicstaticIntlChar::forDigit(int $digit[,int $radix= 10]): int

Determines the character representation for a specific digit in the specified radix.

If the value of radix is not a valid radix, or the value of digit is not a valid digit in the specified radix, the null character(U+0000)is returned.

The radix argument is valid if it is greater than or equal to2and less than or equal to36. The digit argument is valid if0 <= digit < radix.

If the digit is less than10, then '0'+ digit is returned. Otherwise, the value 'a'+ digit - 10 is returned.

参数

$digit

The number to convert to a character.

$radix

The radix(defaults to10).

返回值

The character representation(as a string)of the specified digit in the specified radix.

范例

Testing different code points

<?php
var_dump(IntlChar::forDigit(0));
var_dump(IntlChar::forDigit(3));
var_dump(IntlChar::forDigit(3, 10));
var_dump(IntlChar::forDigit(10));
var_dump(IntlChar::forDigit(10, 16));
?>

以上例程会输出：

int(48)
int(51)
int(51)
int(0)
int(97)

参见

• IntlChar::digit() Get the decimal digit value of a code point for a given radix
• IntlChar::charDigitValue() Get the decimal digit value of a decimal digit character
• IntlChar::isdigit() Check if code point is a digit character
• IntlChar::PROPERTY_NUMERIC_TYPE