qidong_app/qrcode_1.php

<?php

include "php/phpqrcode.php";
$store_id=$_POST['id'];
$logo = $_POST['downlogo'];//准备好的logo图片  
$data= $_POST['url']; 
 
$errorCorrectionLevel="L";

$matrixPointSize="8";

//QRcode::png($data,false,$errorCorrectionLevel,$matrixPointSize);
$templogo='temp/'.$store_id.'qrcode.png';
QRcode::png($data,$templogo , $errorCorrectionLevel, $matrixPointSize, 2);  

 
$QR =$templogo;//已经生成的原始二维码图   
if ($logo !== FALSE) {   
    $QR = imagecreatefromstring(file_get_contents($QR));   
    $logo = imagecreatefromstring(file_get_contents($logo));   
    $QR_width = imagesx($QR);//二维码图片宽度   
    $QR_height = imagesy($QR);//二维码图片高度   
    $logo_width = imagesx($logo);//logo图片宽度   
    $logo_height = imagesy($logo);//logo图片高度   
    $logo_qr_width = $QR_width / 5;   
    $scale = $logo_width/$logo_qr_width;   
    $logo_qr_height = $logo_height/$scale;   
    $from_width = ($QR_width - $logo_qr_width) / 2;   
    //重新组合图片并调整大小   
    imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width,   
    $logo_qr_height, $logo_width, $logo_height);   
}   
//输出图片

$templogonew= 'temp/'.$store_id.'.png';
imagepng($QR,$templogonew);   
echo '<img src='.$templogonew.'>';   


?>