IntlChar::isdefined

(PHP 7)

IntlChar::isdefinedCheck whether the code point is defined

Descrierea

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).

Notă:

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

Parametri

codepoint

Valoarea codepoint de tip integer (de ex. 0x2603 pentru U+2603 SNOWMAN) sau caracterul codificat ca string în UTF-8 (de ex. "\u{2603}")

Valorile întoarse

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

Exemple

Example #1 Testarea diferitor code points

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

Exemplul de mai sus va afișa:

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

A se vedea și

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