IntlChar::forDigit

(PHP 7)

IntlChar::forDigit — Get character representation for a given digit and radix

说明

public static int IntlChar::forDigit ( int $digit [, int $radix = 10 ] )

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 to 2 and less than or equal to 36. The digit argument is valid if 0 <= digit < radix.

If the digit is less than 10, 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 to 10).

返回值

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

范例

Example #1 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