Generate QR code with picture

I just started trying it myself, and it may not be easy for the masters to understand. I hope it will be useful.

Steps: 1. Download the phpqrcode.php file from the website http://phpqrcode.sourceforge.net/, and then put it into your own project;

        2. Write code and introduce phpqrcode.php file to generate QR code.

Code:

1. phpqrcode.php file (just download it)

2. Test code (erweima.app.php)

? & Lt;? PHP

/*
*generates a two-dimensional code
*/
Class EXTENDS ShoppingBaseApp {

Function INDEX () {
$ this- & gt; display ('ERWEIMA. html ');}

/**
* @param string $chl The information contained in the QR code can be numbers, characters, binary information, or Chinese characters.型 cannot be mixed with data types. The data must be set through UTF-8 URL-ENCODED
* @Param int $ widhtheighhead. Settings of the QR code to generate QR codes
@Param String $ EC_LEVEL can be selected. QR code supports four levels of error correction. , used to recover lost, misread, ambiguous, data.
          * L-Default: Can identify 7% of the data that has been lost
       * M- Can identify the data that has been lost by 15%
       * Q- Can identify the data that has been lost by 25%
        * H- Can identify the data that has been lost by 30% Data
  * @param int $margin The distance between the generated QR code and the picture border
 */
function credit_qrcode()
{
include '/includes/libraries/phpqrcode.php';
$value = isset($_POST['url']) ? $_POST['url'] : 'http://www.baidu.com';
                                                                                                 $image = $this->_upload_file('image', 'erweima/', date('YmdHis') . mt_rand(1000, 9999), 'index.php?app=credit&act=credit_qrcode');
     if ($image){
                                                                                 styles/default/images/001.jpg';//Ready logo image
      }
            $errorCorrectionLevel = 'H'; // Error tolerance level
                    $matrixPointSize = 8;     // Generate image size
        //   Generate QR code image
  QRcode::png($value, 'qrcode.png', $errorCorrectionLevel, $matrixPointSize, 2);
$QR = 'qrcode.png';//The original QR code image that has been generated
     
      if($logo !== FALSE){
              $QR = imagecreatefromstring(file_get_contents($ QR));
            $logo = imagecreatefromstring(file_get_contents($logo));
                                                                      using QR using using QR code using  -                                                          Height
                $logo_width = imagesx($logo);                        $scale = $logo_width/$logo_qr_width;
                                                                      resampled($QR, $logo, $from_width, $from_width, 0, ' }

/**
        * Upload file
     * @return mix false means upload failed, empty string means no upload, string means upload file address
       * $file_name is the name of the uploaded file
      * $path_name is the upload path
      * $save_name is the name of the saved file
       * $ret_url is the callback URL
**/
function _upload_file($file_name, $path_name, $save_name, $ret_url = 'index.php')
{
$file = $_FILES[$file_name];
$message = array(
'1' => 'The uploaded file exceeds the limit of the upload_max_filesize option in php.ini. ',
' '2' => 'The size of the uploaded file exceeds the value specified by the MAX_FILE_SIZE option in the HTML form. ',
'3' => 'Only part of the file was uploaded. '
' ' );
' ' switch ($file['error'])
' ' E:
             case UPLOAD_ERR_PARTIAL:
                                                                                                                                               
                  $this->show_warning($message[$file['error']], 'go_back');                                                             {
                        return array('done' => FALSE, 'msg' => $message[$file['error']]);
                                                                                                                                                 Return '';
}
import(' uploader.lib');
$uploader = new Uploader();
$uploader->allowed_type(IMAGE_FILE_TYPE);
$uploader->addFile($file);
if ($uploader->file_info() = == false)
                                                                                                                                              return false; return array('done' => FALSE, 'msg' => $uploader->get_error()); ;save ('data/files/mall/'.$path_name, $save_name);
}
}



3. Template file (erweima.html)

 

       

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