tianye /
WechatMpSDK
| @@ 618-641 (lines=24) @@ | ||
| 615 | * |
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| 616 | * @return string |
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| 617 | */ |
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| 618 | public static function encrypt($data, $key, $expire = 0) |
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| 619 | { |
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| 620 | $data = base64_encode($data); |
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| 621 | $x = 0; |
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| 622 | $len = strlen($data); |
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| 623 | $l = strlen($key); |
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| 624 | $char = ''; |
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| 625 | ||
| 626 | for ($i = 0; $i < $len; $i++) { |
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| 627 | if ($x == $l) { |
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| 628 | $x = 0; |
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| 629 | } |
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| 630 | $char .= substr($key, $x, 1); |
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| 631 | $x++; |
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| 632 | } |
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| 633 | ||
| 634 | $str = sprintf('%010d', $expire ? $expire + time() : 0); |
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| 635 | ||
| 636 | for ($i = 0; $i < $len; $i++) { |
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| 637 | $str .= chr(ord(substr($data, $i, 1)) + (ord(substr($char, $i, 1))) % 256); |
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| 638 | } |
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| 639 | ||
| 640 | return rawurlencode(str_replace('=', '', base64_encode($str))); |
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| 641 | } |
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| 642 | ||
| 643 | /** |
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| 644 | * 解析头信息 |
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| @@ 504-527 (lines=24) @@ | ||
| 501 | * |
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| 502 | * @return string |
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| 503 | */ |
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| 504 | public static function encrypt($data, $key, $expire = 0) |
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| 505 | {
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| 506 | $data = base64_encode($data); |
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| 507 | $x = 0; |
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| 508 | $len = strlen($data); |
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| 509 | $l = strlen($key); |
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| 510 | $char = ''; |
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| 511 | ||
| 512 | for ($i = 0; $i < $len; $i++) {
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| 513 | if ($x == $l) {
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| 514 | $x = 0; |
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| 515 | } |
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| 516 | $char .= substr($key, $x, 1); |
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| 517 | $x++; |
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| 518 | } |
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| 519 | ||
| 520 | $str = sprintf('%010d', $expire ? $expire + time() : 0);
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| 521 | ||
| 522 | for ($i = 0; $i < $len; $i++) {
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| 523 | $str .= chr(ord(substr($data, $i, 1)) + (ord(substr($char, $i, 1))) % 256); |
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| 524 | } |
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| 525 | ||
| 526 | return rawurlencode(str_replace('=', '', base64_encode($str)));
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| 527 | } |
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| 528 | ||
| 529 | /** |
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| 530 | * 解析头信息 |
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