IntlChar::getNumericValue
Get the numeric value for a Unicode code point
Description
public static floatnull IntlChar::getNumericValue(intstring $codepoint
)
For characters without any numeric values in the Unicode Character Database, this function will return
IntlChar::NO_NUMERIC_VALUE
.
Parameters
-
codepoint
-
The int codepoint value (e.g. 0x2603
for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}"
)
Return Values
Numeric value of codepoint
,
or IntlChar::NO_NUMERIC_VALUE
if none is defined. This
constant was added in PHP 7.0.6, prior to this version the literal value
(float)-123456789
may be used instead. Returns null
on failure.
Examples
Example #1 Testing different code points
<?php
var_dump(IntlChar::getNumericValue("4"));
var_dump(IntlChar::getNumericValue("x"));
var_dump(IntlChar::getNumericValue("\u{216C}"));
?>
The above example will output:
float(4)
float(-123456789)
float(50)