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IntlChar::isdefined

(PHP 7, PHP 8)

IntlChar::isdefined — Check whether the code point is defined

Açıklama

public static IntlChar::isdefined(int|string $codepoint): ?bool

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).

Bilginize:

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

Bağımsız Değişkenler

codepoint

int türünde Unicode karakter kodu (örn. U+2603 SNOWMAN için 0x2603) veya string türünde Unicode karakter kodu (örn. "\u{2603}")

Dönen Değerler

Returns true if codepoint is a defined character, false if not. Returns null on failure.

Örnekler

Örnek 1 Farklı karakter kodlarının denenmesi

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

Yukarıdaki örneğin çıktısı:

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

Ayrıca Bakınız