| | |
| | | return $mime_type; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Detect image type of the given binary data by checking magic numbers |
| | | * |
| | | * @param string Binary file content |
| | | * @return string Detected mime-type or jpeg as fallback |
| | | */ |
| | | function rc_image_content_type($data) |
| | | { |
| | | $type = 'jpeg'; |
| | | if (preg_match('/^\x89\x50\x4E\x47/', $data)) $type = 'png'; |
| | | else if (preg_match('/^\x47\x49\x46\x38/', $data)) $type = 'gif'; |
| | | else if (preg_match('/^\x00\x00\x01\x00/', $data)) $type = 'ico'; |
| | | // else if (preg_match('/^\xFF\xD8\xFF\xE0/', $data)) $type = 'jpeg'; |
| | | |
| | | return 'image/' . $type; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * A method to guess encoding of a string. |
| | | * |
| | |
| | | $loaded = true; |
| | | } |
| | | |
| | | if ($idn && $domain && preg_match('/(^|@|\.)xn--/i', $domain)) { |
| | | if ($idn && $domain && preg_match('/(^|\.)xn--/i', $domain)) { |
| | | try { |
| | | $domain = $idn->decode($domain); |
| | | } |