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IntlChar::iscntrl

(PHP 7, PHP 8)

IntlChar::iscntrlCheck if code point is a control character

Description

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

Determines whether the specified code point is a control character.

A control character is one of the following:

Liste de paramètres

codepoint

La valeur codepoint de type entier (i.e. 0x2603 pour U+2603 SNOWMAN), ou le caractère encodé en UTF-8 de type chaîne de caractères (i.e. "\u{2603}")

Valeurs de retour

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

Exemples

Exemple #1 Test de différents codepoint

<?php
var_dump
(IntlChar::iscntrl("A"));
var_dump(IntlChar::iscntrl(" "));
var_dump(IntlChar::iscntrl("\n"));
var_dump(IntlChar::iscntrl("\u{200e}"));
?>

L'exemple ci-dessus va afficher :

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

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