- $B64Values = array(
- 'A' => 0, 'B' => 1, 'C' => 2, 'D' => 3, 'E' => 4, 'F' => 5,
- 'G' => 6, 'H' => 7, 'I' => 8, 'J' => 9, 'K' => 10, 'L' => 11,
- 'M' => 12, 'N' => 13, 'O' => 14, 'P' => 15, 'Q' => 16, 'R' => 17,
- 'S' => 18, 'T' => 19, 'U' => 20, 'V' => 21, 'W' => 22, 'X' => 23,
- 'Y' => 24, 'Z' => 25,
- 'a' => 26, 'b' => 27, 'c' => 28, 'd' => 29, 'e' => 30, 'f' => 31,
- 'g' => 32, 'h' => 33, 'i' => 34, 'j' => 35, 'k' => 36, 'l' => 37,
- 'm' => 38, 'n' => 39, 'o' => 40, 'p' => 41, 'q' => 42, 'r' => 43,
- 's' => 44, 't' => 45, 'u' => 46, 'v' => 47, 'w' => 48, 'x' => 49,
- 'y' => 50, 'z' => 51,
- '0' => 52, '1' => 53, '2' => 54, '3' => 55, '4' => 56, '5' => 57,
- '6' => 58, '7' => 59, '8' => 60, '9' => 61, '+' => 62, ',' => 63
- );
- $p = 0;
- $d = '';
- $unicodeNullByteToggle = 0;
- for ($i = 0, $len = strlen($s); $i < $len; $i++) {
- $c = $s[$i];
- if ($p == 0) {
- $t = $B64Values[$c];
- $p = 1;
- } elseif ($p == 1) {
- if ($unicodeNullByteToggle) {
- $d = $d . chr(($t << 2) + (($B64Values[$c] & 48) >> 4));
- $unicodeNullByteToggle = 0;
- } else {
- $unicodeNullByteToggle = 1;
- }
- $t = ($B64Values[$c] & 15);
- $p = 2;
- } elseif ($p == 2) {
- if ($unicodeNullByteToggle) {
- $d = $d . chr(($t << 4) + (($B64Values[$c] & 60) >> 2));
- $unicodeNullByteToggle = 0;
- } else {
- $unicodeNullByteToggle = 1;
- }
- $t = ($B64Values[$c] & 3);
- $p = 3;
- } elseif ($p == 3) {
- if ($unicodeNullByteToggle) {
- $d = $d . chr(($t << 6) + $B64Values[$c]);
- $unicodeNullByteToggle = 0;
- } else {
- $unicodeNullByteToggle = 1;
- }
- $t = ($B64Values[$c] & 3);
- $p = 0;
- }
- }
- return $d;
+ $B64Values = array(
+ 'A' => 0, 'B' => 1, 'C' => 2, 'D' => 3, 'E' => 4, 'F' => 5,
+ 'G' => 6, 'H' => 7, 'I' => 8, 'J' => 9, 'K' => 10, 'L' => 11,
+ 'M' => 12, 'N' => 13, 'O' => 14, 'P' => 15, 'Q' => 16, 'R' => 17,
+ 'S' => 18, 'T' => 19, 'U' => 20, 'V' => 21, 'W' => 22, 'X' => 23,
+ 'Y' => 24, 'Z' => 25,
+ 'a' => 26, 'b' => 27, 'c' => 28, 'd' => 29, 'e' => 30, 'f' => 31,
+ 'g' => 32, 'h' => 33, 'i' => 34, 'j' => 35, 'k' => 36, 'l' => 37,
+ 'm' => 38, 'n' => 39, 'o' => 40, 'p' => 41, 'q' => 42, 'r' => 43,
+ 's' => 44, 't' => 45, 'u' => 46, 'v' => 47, 'w' => 48, 'x' => 49,
+ 'y' => 50, 'z' => 51,
+ '0' => 52, '1' => 53, '2' => 54, '3' => 55, '4' => 56, '5' => 57,
+ '6' => 58, '7' => 59, '8' => 60, '9' => 61, '+' => 62, ',' => 63
+ );
+ $p = 0;
+ $d = '';
+ $unicodeNullByteToggle = 0;
+ for ($i = 0, $len = strlen($s); $i < $len; $i++) {
+ $c = $s[$i];
+ if ($p == 0) {
+ $t = $B64Values[$c];
+ $p = 1;
+ } elseif ($p == 1) {
+ if ($unicodeNullByteToggle) {
+ $d = $d . chr(($t << 2) + (($B64Values[$c] & 48) >> 4));
+ $unicodeNullByteToggle = 0;
+ } else {
+ $unicodeNullByteToggle = 1;
+ }
+ $t = ($B64Values[$c] & 15);
+ $p = 2;
+ } elseif ($p == 2) {
+ if ($unicodeNullByteToggle) {
+ $d = $d . chr(($t << 4) + (($B64Values[$c] & 60) >> 2));
+ $unicodeNullByteToggle = 0;
+ } else {
+ $unicodeNullByteToggle = 1;
+ }
+ $t = ($B64Values[$c] & 3);
+ $p = 3;
+ } elseif ($p == 3) {
+ if ($unicodeNullByteToggle) {
+ $d = $d . chr(($t << 6) + $B64Values[$c]);
+ $unicodeNullByteToggle = 0;
+ } else {
+ $unicodeNullByteToggle = 1;
+ }
+ $t = ($B64Values[$c] & 3);
+ $p = 0;
+ }
+ }
+ return $d;