PHP 5.6.38 Released

IntlChar::isIDIgnorable

(PHP 7)

IntlChar::isIDIgnorableCheck if code point is an ignorable character

Beschreibung

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

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).

Hinweis:

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

Parameter-Liste

codepoint

Der Integer-Wert des Codepoints (z.B. 0x2603 für U+2603 SNOWMAN) oder das Zeichen als UTF-8 String kodiert (z.B. "\u{2603}")

Rückgabewerte

Returns TRUE if codepoint is ignorable in identifiers, FALSE if not.

Beispiele

Beispiel #1 Testen unterschiedlicher Codepoints

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

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

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

Siehe auch

  • 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

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