IntlChar::getNumericValue
(PHP 7, PHP 8)
IntlChar::getNumericValue — Get the numeric value for a Unicode code point
Beschreibung
$codepoint
): ?floatGets the numeric value for a Unicode code point as defined in the Unicode Character Database.
For characters without any numeric values in the Unicode Character Database, this function will return
IntlChar::NO_NUMERIC_VALUE
.
Parameter-Liste
-
codepoint
-
Der int-Wert des Codepoints (z. B.
0x2603
für U+2603 SNOWMAN) oder das Zeichen als UTF-8-String kodiert (z.B."\u"
).
Rückgabewerte
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.
Beispiele
Beispiel #1 Testen unterschiedlicher Codepoints
<?php
var_dump(IntlChar::getNumericValue("4"));
var_dump(IntlChar::getNumericValue("x"));
var_dump(IntlChar::getNumericValue("\u"));
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
float(4) float(-123456789) float(50)