(PHP 7, PHP 8)
IntlChar::isblank — Check if code point is a "blank" or "horizontal space" character
$codepoint): ?boolDetermines 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).
codepointUm codepoint integer (por exemplo 0x2603 para U+2603 SNOWMAN), ou um caracter codificado como uma string UTF-8 (exemplo "\u{2603}")
Returns true if
codepoint is either a "blank" or "horizontal space" character, false if not. Returns null on failure.
Exemplo #1 Testando codepoints diferentes
<?php
var_dump(IntlChar::isblank("A"));
var_dump(IntlChar::isblank(" "));
var_dump(IntlChar::isblank("\t"));
?>
O exemplo acima irá imprimir:
bool(false) bool(true) bool(true)