(PHP 7, PHP 8)
IntlChar::isbase — Check if code point is a base character
$codepoint): ?bool
Determines whether the specified code point is a base character. true for general categories "L" (letters),
"N" (numbers), "Mc" (spacing combining marks), and "Me" (enclosing marks).
Nota:
This is different from the Unicode definition in chapter 3.5, conformance clause D13, which defines base characters to be all characters (not Cn) that do not graphically combine with preceding characters (M) and that are neither control (Cc) or format (Cf) characters.
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 a base character, false if not. Returns null on failure.
Exemplo #1 Testando codepoints diferentes
<?php
var_dump(IntlChar::isbase("A"));
var_dump(IntlChar::isbase("1"));
var_dump(IntlChar::isbase("\u{2603}"));
?>
O exemplo acima irá imprimir:
bool(true) bool(true) bool(false)