public static Unicode::mimeHeaderDecode($header)
Decodes MIME/HTTP encoded header values.
Parameters
string $header: The header to decode.
Return value
string The mime-decoded header.
File
- core/lib/Drupal/Component/Utility/Unicode.php, line 634
Class
- Unicode
- Provides Unicode-related conversions and operations.
Namespace
Drupal\Component\Utility
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 | public static function mimeHeaderDecode($header) { $callback = function($matches) { $data = ($matches[2] == 'B') ? base64_decode($matches[3]) : str_replace('_', ' ', quoted_printable_decode($matches[3])); if (strtolower($matches[1]) != 'utf-8') { $data = static::convertToUtf8($data, $matches[1]); } return $data; }; // First step: encoded chunks followed by other encoded chunks (need to collapse whitespace) $header = preg_replace_callback('/=\?([^?]+)\?(Q|B)\?([^?]+|\?(?!=))\?=\s+(?==\?)/', $callback, $header); // Second step: remaining chunks (do not collapse whitespace) return preg_replace_callback('/=\?([^?]+)\?(Q|B)\?([^?]+|\?(?!=))\?=/', $callback, $header);} |
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