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IntlChar::iscntrl

(PHP 7, PHP 8)

IntlChar::iscntrlCheck if code point is a control character

Açıklama

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

Determines whether the specified code point is a control character.

A control character is one of the following:

  • ISO 8-bit control character (U+0000..U+001f and U+007f..U+009f)
  • IntlChar::CHAR_CATEGORY_CONTROL_CHAR (Cc)
  • IntlChar::CHAR_CATEGORY_FORMAT_CHAR (Cf)
  • IntlChar::CHAR_CATEGORY_LINE_SEPARATOR (Zl)
  • IntlChar::CHAR_CATEGORY_PARAGRAPH_SEPARATOR (Zp)

Değiştirgeler

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 control character, false if not.

Örnekler

Örnek 1 Farklı karakter kodlarının denenmesi

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

Yukarıdaki örneğin çıktısı:

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

Ayrıca Bakınız

  • IntlChar::isprint() - Check if code point is a printable character
  • IntlChar::PROPERTY_DEFAULT_IGNORABLE_CODE_POINT

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