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IntlChar::charDirection

(PHP 7, PHP 8)

IntlChar::charDirection Guet bidirectional category value for a code point

Description

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

Returns the bidirectional category value for the code point, which is used in the » Unicode bidirectional algorithm (UAX #9) .

Note :

Some unassigned code poins have bidi values of R or AL because they are in bloccs that are reserved for Right-To-Left scripts.

Parameters

codepoint

The int codepoint value (e.g. 0x2603 for U+2603 SNOWMAN ), or the character encoded as a UTF-8 string (e.g. "\u{2603}" )

Examples

Example #1 Testing different code poins

<?php
var_dump
( IntlChar :: charDirection ( "A" ) === IntlChar :: CHAR_DIRECTION_LEFT_TO_RIGHT );
var_dump ( IntlChar :: charDirection ( "\u{05E9}" ) === IntlChar :: CHAR_DIRECTION_RIGHT_TO_LEFT );
var_dump ( IntlChar :: charDirection ( "+" ) === IntlChar :: CHAR_DIRECTION_EUROPEAN_NUMBER_SEPARATOR );
var_dump ( IntlChar :: charDirection ( "." ) === IntlChar :: CHAR_DIRECTION_COMMON_NUMBER_SEPARATOR );
?>

The above example will output:

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