| 1 | <?php |
| 2 | |
| 3 | function encodeBASE64($s) { |
| 4 | $B64Chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+,'; |
| 5 | $p = 0; // phase: 1 / 2 / 3 / 1 / 2 / 3... |
| 6 | $e = ''; // base64-encoded string |
| 7 | //foreach($s as $c) { |
| 8 | for ($i = 0; $i < strlen($s); $i++) { |
| 9 | $c = $s[$i]; |
| 10 | if ($p == 0) { |
| 11 | $e = $e . substr($B64Chars, ((ord($c) & 252) >> 2), 1); |
| 12 | $t = (ord($c) & 3); |
| 13 | $p = 1; |
| 14 | } elseif ($p == 1) { |
| 15 | $e = $e . $B64Chars[($t << 4) + ((ord($c) & 240) >> 4)]; |
| 16 | $t = (ord($c) & 15); |
| 17 | $p = 2; |
| 18 | } elseif ($p == 2) { |
| 19 | $e = $e . $B64Chars[($t << 2) + ((ord($c) & 192) >> 6)]; |
| 20 | $e = $e . $B64Chars[ord($c) & 63]; |
| 21 | $p = 0; |
| 22 | } |
| 23 | } |
| 24 | // |
| 25 | // flush buffer |
| 26 | // |
| 27 | if ($p == 1) { |
| 28 | $e = $e . $B64Chars[$t << 4]; |
| 29 | } elseif ($p == 2) { |
| 30 | $e = $e . $B64Chars[$t << 2]; |
| 31 | } |
| 32 | return $e; |
| 33 | } |
| 34 | |
| 35 | function imap_utf7_encode_local($s) { |
| 36 | $b64_s = ''; // buffer for substring to be base64-encoded |
| 37 | $utf7_s = ''; // imap-utf7-encoded string |
| 38 | for ($i = 0; $i < strlen($s); $i++) { |
| 39 | $c = $s[$i]; |
| 40 | $ord_c = ord($c); |
| 41 | if ((($ord_c >= 0x20) and ($ord_c <= 0x25)) or |
| 42 | (($ord_c >= 0x27) and ($ord_c <= 0x7e))) { |
| 43 | if ($b64_s) { |
| 44 | $utf7_s = $utf7_s . '&' . encodeBASE64($b64_s) .'-'; |
| 45 | $b64_s = ''; |
| 46 | } |
| 47 | $utf7_s = $utf7_s . $c; |
| 48 | } elseif ($ord_c == 0x26) { |
| 49 | if ($b64_s) { |
| 50 | $utf7_s = $utf7_s . '&' . encodeBASE64($b64_s) . '-'; |
| 51 | $b64_s = ''; |
| 52 | } |
| 53 | $utf7_s = $utf7_s . '&-'; |
| 54 | } else { |
| 55 | $b64_s = $b64_s . chr(0) . $c; |
| 56 | } |
| 57 | } |
| 58 | // |
| 59 | // flush buffer |
| 60 | // |
| 61 | if ($b64_s) { |
| 62 | $utf7_s = $utf7_s . '&' . encodeBASE64($b64_s) . '-'; |
| 63 | $b64_s = ''; |
| 64 | } |
| 65 | return $utf7_s; |
| 66 | } |
| 67 | |
| 68 | ?> |