function Utils::unicodeToUtf8

Converts an unicode code point to UTF-8

@codeCoverageIgnore

Parameters

int $num Unicode code point:

Return value

string

6 calls to Utils::unicodeToUtf8()

Identifier::setRawName in vendor/mck89/peast/lib/Peast/Syntax/Node/Identifier.php

Sets the identifier's raw name

Scanner::consumeUnicodeEscapeSequence in vendor/mck89/peast/lib/Peast/Syntax/Scanner.php

Consumes an unicode escape sequence

Scanner::__construct in vendor/mck89/peast/lib/Peast/Syntax/Scanner.php

Class constructor

Utils::getLineTerminators in vendor/mck89/peast/lib/Peast/Syntax/Utils.php

Returns line terminators array

Utils::surrogatePairToUtf8 in vendor/mck89/peast/lib/Peast/Syntax/Utils.php

Converts a surrogate pair of Unicode code points to UTF-8

... See full list

File

vendor/mck89/peast/lib/Peast/Syntax/Utils.php, line 58

Class

Utils

Utilities class.

Namespace

Peast\Syntax

Code

public static function unicodeToUtf8($num) {
    
    //From: http://stackoverflow.com/questions/1805802/php-convert-unicode-codepoint-to-utf-8#answer-7153133
    if ($num <= 0x7f) {
        return chr($num);
    }
    elseif ($num <= 0x7ff) {
        return chr(($num >> 6) + 192) . chr(($num & 63) + 128);
    }
    elseif ($num <= 0xffff) {
        return chr(($num >> 12) + 224) . chr(($num >> 6 & 63) + 128) . chr(($num & 63) + 128);
    }
    elseif ($num <= 0x1fffff) {
        return chr(($num >> 18) + 240) . chr(($num >> 12 & 63) + 128) . chr(($num >> 6 & 63) + 128) . chr(($num & 63) + 128);
    }
    return '';
}