(PHP 7, PHP 8)
IntlChar::iscntrl — Check if code point is a control character
Determines whether the specified code point is a control character.
A control character is one of the following:
IntlChar::CHAR_CATEGORY_CONTROL_CHAR
(Cc)IntlChar::CHAR_CATEGORY_FORMAT_CHAR
(Cf)IntlChar::CHAR_CATEGORY_LINE_SEPARATOR
(Zl)IntlChar::CHAR_CATEGORY_PARAGRAPH_SEPARATOR
(Zp)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}"
)
Returns true
if
codepoint
is a control character, false
if not. Returns null
on failure.
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)
IntlChar::PROPERTY_DEFAULT_IGNORABLE_CODE_POINT