PHP生成二維碼：dcode

一個基于QR Code encoder的生成二維碼的php擴展，同時實現了Discuz論壇系統里面的authcode函數，相比php版本速度更快，生成幾萬個二維碼秒秒鐘。如果使用Discuz論壇，需要有這方面性能提升的，那么該擴展時不錯的選擇。

依賴： php5.4+ libpng

示例代碼：

DCode::encrypt($src, $key = "THIS IS SHIT", $ckeylength = 8, $expire = 0);
DCode::decrypt($src, $key = "THIS IS SHIT", $ckeylength = 8);

/** 
* DCode::qrcode($str, $version = 0, $level = QR_ECLEVEL_L, $mode = QR_MODE_KANJI, $casesensitive = 0);
* @param $str;
* @param $version = 0;
* @param $level = QR_ECLEVEL_L;
* @param $model = QR_MODE_KANJI;
* @param $casesensitive = 0;
* @return string
*/
$filecontent = DCode::qrcode("HELLO");
file_put_contents("test.png", $filecontent);

/**
* DCode::qrcode8bit($str, $version = 0, $level = QR_ECLEVEL_L);
* @param $str;
* @param $version = 0;
* @param $level = QR_ECLEVEL_L;
* @return string
*/
$filecontent = DCode::qrcode8bit("HELLO WORLD");
file_put_contents("test1.png", $filecontent);

/**
* DCode::qrcodedata($sizeof, $data, $version = 0, $level = QR_ECLEVEL_L);
* @param $sizeof
* @param $data
* @param $version = 0;
* @param $level = QR_ECLEVEL_L;
* @return string
*/
$filecontent = DCode::qrcodedata(strlen("HELLO WORLD"), "HELLO WORLD");
file_put_contents("test2.png", $filecontent);

dcode_encrypt($src, $key = "THIS IS SHIT", $ckeylength = 8, $expire = 0);
dcode_decrypt($src, $key = "THIS IS SHIT", $ckeylength = 8);

$filecontent = dcode_qrcode("HELLO");
file_put_contents("test.png", $filecontent);

$filecontent = dcode_qrcode8bit("HELLO 8bit");
file_put_contents("test1.png", $filecontent);

$filecontent = dcode_qrcodedata(strlen("HELLO 8bit"), "HELLO 8bit");
file_put_contents("test2.png", $filecontent);

項目主頁：http://www.baiduhome.net/lib/view/home/1441010675112