aboutsummaryrefslogtreecommitdiffstats
path: root/vendor/smarty/smarty/libs/plugins/shared.mb_unicode.php
blob: 0f790b56a875c0d09486da38b2872c71a7a588d6 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
<?php
/**
 * Smarty shared plugin
 *
 * @package    Smarty
 * @subpackage PluginsShared
 */

/**
 * convert characters to their decimal unicode equivalents
 *
 * @link   http://www.ibm.com/developerworks/library/os-php-unicode/index.html#listing3 for inspiration
 *
 * @param string $string   characters to calculate unicode of
 * @param string $encoding encoding of $string, if null mb_internal_encoding() is used
 *
 * @return array sequence of unicodes
 * @author Rodney Rehm
 */
function smarty_mb_to_unicode($string, $encoding = null)
{
    if ($encoding) {
        $expanded = mb_convert_encoding($string, "UTF-32BE", $encoding);
    } else {
        $expanded = mb_convert_encoding($string, "UTF-32BE");
    }

    return unpack("N*", $expanded);
}

/**
 * convert unicodes to the character of given encoding
 *
 * @link   http://www.ibm.com/developerworks/library/os-php-unicode/index.html#listing3 for inspiration
 *
 * @param integer|array $unicode  single unicode or list of unicodes to convert
 * @param string        $encoding encoding of returned string, if null mb_internal_encoding() is used
 *
 * @return string unicode as character sequence in given $encoding
 * @author Rodney Rehm
 */
function smarty_mb_from_unicode($unicode, $encoding = null)
{
    $t = '';
    if (!$encoding) {
        $encoding = mb_internal_encoding();
    }
    foreach ((array) $unicode as $utf32be) {
        $character = pack("N*", $utf32be);
        $t .= mb_convert_encoding($character, $encoding, "UTF-32BE");
    }

    return $t;
}