PHP implementation generated with two-dimensional code image and forced to download the steps in detail

This time for everyone to bring PHP implementation generated with two-dimensional code image and forced to download the steps in detail, PHP implementation of the generation with two-dimensional code images and mandatory download of the attention to what, the following is the actual case, take a look.

/* Download QR code */Public Function test () {//Receive passed parameters $data [' keys '] = [' B01id ' =>trim (I (' get.b01id '), ' B02id ' =>trim ( I (' get.b02id ')), ' B03id ' =>trim (i (' get.b03id ')), ' Brid ' =>trim (i (' Get.brid ')), ' Unicon ' =>trim (i ('  Get.unicon ')];  if (Empty ($data [' Keys '] [' b01id ']) $this->error (' Merchant does not exist ', U (' Seller/index '), 3); $res = D (' Sellerbrcode ')->download ($data);  The method below if (!is_array ($res)) $this->error ($res, U (' Seller/index '), 3); if (!empty ($res [' Error '])) $this->error ($res [' Error '],u (' Seller/seebrcode? ').  $res [' url ']), 3); Make code card $bgimg = imagecreatefromstring (file_get_contents ($res [' bgimg '));  Get the background map to do canvas import (' Component/phpqrcode ', App_path, '. php '); Introduce two-dimensional code generation class//If there is a scan code 1232-D code, then generate a scan code 1232-D code if (' '! = $res [' Codea ']) {/* parameter description: * Parameter 1: QR code needs to keep the value of * parameter 2:false represents the direct output, others are raw   File name * Parameter 3: Error correction level: L, M, Q, H * Parameter 4: Point size, the larger the value of the larger the picture * */\qrcode::p ng ($res [' Codea '], $res [' codeimg '], ' h ', 18); /* Use picture Scaling method bool Imagecopyresized ($DST _im, $src _im, $dst _x, $dst _y,$src _x, $src _y, $dst _w, $dst _h, $src _w, $src _h) dst_im target image linked resources.     A resource that src_im the source image link.     Dst_x The x-coordinate of the destination.     Dst_y y-coordinate destination.     Src_x the source point of the x-coordinate.     Src_y the y-coordinate source point.     Dst_w the destination width.     Dst_h target height.     Src_w the source width.    Src_h source height. * */$codeimg = imagecreatefromstring (file_get_contents ($res [' codeimg ')]);        Get the QR code picture $BG _info = getimagesize ($res [' codeimg ']);  Get the size of the original two-dimensional code picture imagecopyresized ($bgimg, $codeimg, 1520,550,0,70,700,666, $BG _info[0], $bg _info[1]-36);   }//If there is a UnionPay cloud Flash payment QR code, then generate UnionPay cloud flash QR code picture if (' '! = $res [' codeb ']) {\qrcode::p ng ($res [' Codeb '], $res [' paycodeimg '], ' H ', 18); $codeimg = imagecreatefromstring (file_get_contents ($res [' paycodeimg '));//get QR code picture $BG _info = getimagesize ($res ['       Paycodeimg ']);  Get the size of the original two-dimensional code picture imagecopyresized ($bgimg, $codeimg, 236,536,0,80,750,670, $BG _info[0], $bg _info[1]-80);   }//If there is a merchant promotion QR code, then generate merchant promotion QR code picture if (' '! = $res [' codec ']) {\qrcode::p ng ($res [' codec '], $res [' bridimg '], ' H ', 18); $codeimg = imagecreatefromstring (file_get_contents ($res [' BridIMG ']));        Get the QR code picture $BG _info = getimagesize ($res [' bridimg ']);  Get the size of the original two-dimensional code picture imagecopyresized ($bgimg, $codeimg, 1375,1288,0,0,230,230, $BG _info[0], $BG _info[1]);     }//If there is a merchant name if (' '! = $res [' bname ']) {//In order to center the text, you need to calculate the left offset preg_match_all ("/[0-9]{1}/", $res [' bname '], $len 1);    Get the number of words in the string Preg_match_all ("/[a-za-z]{1}/", $res [' bname '], $len 2); Get the number of letters in the string Preg_match_all ("/([\x{4e00}-\x{9fa5}]) {1}/u", $res [' bname '], $len 3);   Get the number of Chinese in the string $left = 610-(COUNT ($len 1[0]) * (COUNT ($len 2[0]) * (COUNT ($len 3[0]) * 28); $res [' filename ']. = ' _ '.       $res [' bname '];    Append two-D code name $black = Imagecolorallocate ($bgimg, 0x20, 0x57, 0xa0);  Font Color imagefttext ($bgimg, 0, $left, 480, $black, './public/font/msyh.ttf ', $res [' bname ']);    }//If there is a QR code number, write a QR code number if (' '! = $res [' Brid ']) {$black = Imagecolorallocate ($bgimg, 0x3e, 0x75, 0xc7);  Font Color imagefttext ($bgimg, 0, 1720,1190, $black, './public/font/msyh.ttf ', $res [' Brid ']); }//Add UnionPay cloud Flash logo $codeimg = Imagecreatefromstring (file_get_contents ($res [' Union ')]);         Get the QR code picture $BG _info = getimagesize ($res [' Union ']); Get the original logo image size imagecopyresized ($bgimg, $codeimg, 550,760,0,0,120,120* $bg _info[1]/$bg _info[0], $BG _info[0], $BG _  INFO[1]);  Add code 123logo $codeimg = imagecreatefromstring (file_get_contents ($res [' logo ')]);         Get the QR code image $BG _info = getimagesize ($res [' logo ']); Get the original logo image size imagecopyresized ($bgimg, $codeimg, 1805,770,0,0,120,120* $bg _info[1]/$bg _info[0], $BG _info[0], $BG _  INFO[1]); $res [' filename ']. = ' _ '. Date (' y-m-d ', Time ()).    '. png '; Append two-D code name header (' Pragma:public ');  Required header (' expires:0 ');  No cache header (' Cache-control:must-revalidate, post-check=0, pre-check=0 ');  Header (' Cache-control:private ', false);  Header (' content-type:application/force-download ');  Header (' content-disposition:attachment; filename= '. $res [' filename ']. ' "');  Header (' content-transfer-encoding:binary ');  Header (' Connection:close '); Imagepng ($BGIMG); }/* before creating a picture Splicing data */public function Download ($data) {$tool = D (' tool '),//Get public class $mysql = M (), $admin = I (' session.admin ');/* stitching URL, convenient for the following error , the jump uses */$show [' url '] = ' b01id= '. $data [' Keys '] [' b01id '];//if the user ID is passed, determine if the user belongs to the merchant if ($data [' Keys '] [' b03id ']) $show [' url '].= ' &b03id= '. $data [' Keys '] [' b03id '];//if a QR code is passed idif ($data [' Keys '] [' b02id ']) $show [' url '].= ' &b02id= '. $data [' Keys '] [' b02id '];//if the UnionPay cloud Flash payment if ($data [' Keys '] [' Unicon ']) $show [' url '].= ' &unicon= '. $data [' Keys '] [' Unicon '];//if the promo QR code is passed if ($data [' Keys '] [' Brid ']) $show [' url '].= ' &brid= '. $data [' Keys '] [' Brid '];//call the upper method to get the data $ data = $this->seebrcode ($data, $tool, $mysql, $admin, False), if (!is_array ($data)) {return [' error ' + = $data, ' url ' = > $show [' url ']; }/* get the data to show */$show [' bgimg ']= './public/img/qrcode/qrcode.png ';//Background Image address $show[' logo ']= './public/img/qrcode/ Logo.png ';//code 123 logo address $show[' union ' = './public/img/qrcode/unionpay.png ';//UnionPay logo address $show[' codeimg ']= './public /img/qrcode/code.png ';//common QR code generated save address $show[' paycodeimg '] = './public/img/Qrcode/paycode.png ';//UnionPay Two-dimensional code generated by the Save address $show[' bridimg ']= './public/img/qrcode/brid.png ';//merchant promotion QR code image save Address $show[' FileName ']= ' scan code 123 receive two-dimensional code ';//QR code name//scan code 1232-dimensional code content $show[' Codea ']= (! $data [' Keys '] [' b02id '])? ": Isset ($data [' QRCode '] [$data [' Keys '] [' b02id ']])? $data [' Url1 ']. $data [' QRCode '] [$data [' Keys '] [' b02id ']][' Brcode ']: ';//sweep code 1232-dimensional code number $show[' Brid ']= (! $data [' Keys '] [' B02id '])? ": Isset ($data [' QRCode '] [$data [' Keys '] [' b02id ']])? ' NO. '. $data [' Keys '] [' b02id ']: ';//UnionPay QR code $show[' codeb ']= (! $data [' Keys '] [' Unicon '])? ": Isset ($data [' QRCode '] [$data [' Keys '] [' Unicon ']])? $data [' QRCode '] [$data [' Keys '] [' Unicon ']][' Brcode ']: ';//merchant promotion QR code $show[' codec ']= (! $data [' Keys '] [' Brid '])? ": Isset ($data [' Download '] [$data [' Keys '] [' Brid ']])? $data [' Url2 ']. $data [' Download '] [$data [' Keys '] [' Brid ']][' Brcode ']: ';//Merchant name $show[' bname ']= empty ($data [' seller '] [' Bshortname ']) ? (Empty ($data [' seller '] [' bname '])? (Empty ($data [' seller '] [' bcode '])? $data [' Seller '] [' b01id ']: $data [' seller '] [' Bcode ']): $data [' Seller ' [' bname ']): $data [' seller '] [' bshortname '];/* if there is an old picture, delete the old picture */if (Is_file ($res [' codeimg ']) unlink ($res [' Codeimg ']);//delete the old sweep code 1232-D code picture if (Is_file ($res [' paycodeimg ')) unlink ($res [' paycodeimg ']); Delete old UnionPay cloud flash QR code image if (Is_file ($res [' paycodeimg '])) unlink ($res [' paycodeimg ']); Delete the old merchant promotion QR code picture return $show;}

Believe that you have read the case of this article you have mastered the method, more exciting please pay attention to the PHP Chinese network other related articles!

Recommended reading:

In_array implicit conversion implementation steps in PHP

PHP Record search engine crawling process of the detailed method