PHP 7.2.7 Released

IntlChar::isdefined

(PHP 7)

IntlChar::isdefinedCheck whether the code point is defined

Beschreibung

public static bool IntlChar::isdefined ( mixed $codepoint )

Determines whether the specified code point is "defined", which usually means that it is assigned a character.

TRUE for general categories other than "Cn" (other, not assigned).

Hinweis:

Note that non-character code points (e.g., U+FDD0) are not "defined" (they are Cn), but surrogate code points are "defined" (Cs).

Parameter-Liste

codepoint

Der Integer-Wert des Codepoints (z.B. 0x2603 für U+2603 SNOWMAN) oder das Zeichen als UTF-8 String kodiert (z.B. "\u{2603}")

Rückgabewerte

Returns TRUE if codepoint is a defined character, FALSE if not.

Beispiele

Beispiel #1 Testen unterschiedlicher Codepoints

<?php
var_dump
(IntlChar::isdefined("A"));
var_dump(IntlChar::isdefined(" "));
var_dump(IntlChar::isdefined("\u{FDD0}"));
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

bool(true)
bool(true)
bool(false)

Siehe auch

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