Check if code point is a control character

# IntlChar::iscntrl

(PHP 7)

IntlChar::iscntrl — Check if code point is a control character

### Descrierea

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)

### 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 control character, `FALSE` if not.

### Exemple

Example #1 Testarea diferitor code points

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

Exemplul de mai sus va afișa:

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

### A se vedea și

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