International PHP Conference Berlin 2023

IntlChar::isblank

(PHP 7, PHP 8)

IntlChar::isblankCheck if code point is a "blank" or "horizontal space" character

Beschreibung

public static IntlChar::isblank(int|string $codepoint): ?bool

Determines whether the specified code point is a "blank" or "horizontal space", a character that visibly separates words on a line.

The following are equivalent definitions:

  • true for Unicode White_Space characters except for "vertical space controls" where "vertical space controls" are the following characters: U+000A (LF) U+000B (VT) U+000C (FF) U+000D (CR) U+0085 (NEL) U+2028 (LS) U+2029 (PS)
  • true for U+0009 (TAB) and characters with general category "Zs" (space separators) except Zero Width Space (ZWSP, U+200B).

Parameter-Liste

codepoint

Ein Wert vom Typ int, der einen Codepoint darstellt (z. B. 0x2603 für U+2603 SNOWMAN) oder ein als UTF-8-String kodiertes Zeichen (z. B. "\u{2603}")

Rückgabewerte

Returns true if codepoint is either a "blank" or "horizontal space" character, false if not. Returns null on failure.

Beispiele

Beispiel #1 Testen unterschiedlicher Codepoints

<?php
var_dump
(IntlChar::isblank("A"));
var_dump(IntlChar::isblank(" "));
var_dump(IntlChar::isblank("\t"));
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

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

Siehe auch

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