IntlChar::isIDIgnorable

(PHP 7)

IntlChar::isIDIgnorable — Check if code point is an ignorable character

Descrierea

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

Determines if the specified character should be regarded as an ignorable character in an identifier.

TRUE for characters with general category "Cf" (format controls) as well as non-whitespace ISO controls (U+0000..U+0008, U+000E..U+001B, U+007F..U+009F).

Notă:

Note that Unicode just recommends to ignore Cf (format controls).

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 ignorable in identifiers, FALSE if not.

Exemple

Example #1 Testarea diferitor code points

<?php
var_dump(IntlChar::isIDIgnorable("A"));
var_dump(IntlChar::isIDIgnorable(" "));
var_dump(IntlChar::isIDIgnorable("\u{007F}"));
?>

Exemplul de mai sus va afișa:

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

A se vedea și

  • IntlChar::isIDStart() - Check if code point is permissible as the first character in an identifier
  • IntlChar::isIDPart() - Check if code point is permissible in an identifier
  • IntlChar::PROPERTY_DEFAULT_IGNORABLE_CODE_POINT