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IntlChar::isbase

PHP function Edit on GitHub ✎

(PHP 7, PHP 8)

Check if code point is a base character

Description

IntlChar::isbase(int|string $codepoint): bool|null

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).

Note

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.

Parameters

codepoint

Parameter

Return Values

Returns true if codepoint is a base character, false if not. Returns null on failure.

Examples

Example

php
<?php
var_dump(IntlChar::isbase("A"));
var_dump(IntlChar::isbase("1"));
var_dump(IntlChar::isbase("\u{2603}"));
?>

The above example will output:

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

See Also

Source: reference/intl/intlchar/isbase.xml · from the official PHP manual (php/doc-en)