function _mime_header_decode

Decodes encoded header data passed from mime_header_decode().

Callback for preg_replace_callback() within mime_header_decode().

Parameters

$matches: The array of matches from preg_replace_callback().

Return value

string The mime-decoded string.

See also

mime_header_decode()

File

includes/unicode.inc, line 437

Code

function _mime_header_decode($matches) {
    // Regexp groups:
    // 1: Character set name
    // 2: Escaping method (Q or B)
    // 3: Encoded data
    $data = $matches[2] == 'B' ? base64_decode($matches[3]) : str_replace('_', ' ', quoted_printable_decode($matches[3]));
    if (strtolower($matches[1]) != 'utf-8') {
        $data = drupal_convert_to_utf8($data, $matches[1]);
    }
    return $data;
}