IntlChar::isdigit
Check if code point is a digit character
Description
public static bool IntlChar::isdigit
( mixed $codepoint
)
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.
Parameters
-
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}")
Return Values
Returns TRUE if
codepoint is a digit character, FALSE if not.
Examples
Example #1 Testing different code points
<?php
var_dump(IntlChar::isdigit("A"));
var_dump(IntlChar::isdigit("1"));
var_dump(IntlChar::isdigit("\t"));
?>
The above example will output:
bool(false)
bool(true)
bool(false)
See Also
- IntlChar::isalpha
- IntlChar::isalnum
- IntlChar::isxdigit