说明：这篇文章主要为大家详细介绍了Thinkphp3.2.3整合phpqrcode生成带二维码的实现方法并提供图像下载，感兴趣的小伙伴们可以参考一下
缘由：Thinkphp中没有二维码相关的库，因此我们可以通过整合phpqrcode来完成生成二维码的功能。
一、phpqrcode下载地址：http://phpqrcode.sourceforge.net/
放置位置：Thinkphp/Vendor/目录下，如下图
二、写代码
HTML代码
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta content="initial-scale=1.0, minimum-scale=1.0, maximum-scale=2.0, user-scalable=no, width=device-width" name="viewport"><title>生成二维码_sl95-申霖个人博客</title><style>body{background: #b5b5b5;}.box{width: 350px;height: 300px;border: solid 2px #b5b5b5; border-radius: 5px; margin: 0 auto;margin-top: 50px;background-color: #999;}h3{color: #FFF;font-size: 24px;text-align: center;}span{color: #FFF;display: block;width:300px;padding-left: 45px;line-height: 30px;}.input-url{display:block;width: 250px;height: 30px;margin:0 auto;border-radius: 5px;border: solid 1px #FFF;padding-left: 10px;}.input-code{width: 50px;height: 30px;float:left;margin-left:70px;border-radius: 5px;border: solid 1px #FFF;padding-left: 10px;}img{width: 80px;height: 30px;float: left;margin-left: 20px;}.input-submit{display:block;width: 265px;height: 40px;margin:0 auto;margin-top:20px;background-color: #3385ff;color: #FFF; border-radius: 5px;border: solid 1px #b5b5b5;}.footer{width:300px;height:30px;margin:0 auto;text-align: center;padding: 3px 3px;color: #ddd;}.error{display: none;}.img{display: none;width: 350px;height: 300px;border: solid 2px #b5b5b5; border-radius: 5px; margin: 0 auto;margin-top: 50px;background-color: #999;}.img img{width: 350px;height: 350px;margin: 0 auto;background-color: #999;}</style></head><body><div class="box"><h3>生成二维码</h3><span>网 ?址</span><input type="text" name="url" required="" placeholder="请输入网址，例：www.baidu.com" class="input-url"><input type="submit" value="提交" class="input-submit"><div class="footer"><p>? 申霖</p></div><div class="error"><button class="input-submit error-pic">生成失败</button></div></div><div class="img"><img src="" alt="二维码图片" class="ewm-pic"><p align="center">手机长按下载，电脑右键另存为下载</p></div><script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script><script>$(".input-submit").click(function(){var url = $(".input-url").val();if(!url){alert("请先填写网址！");}else{$.ajax({url:"http://www.sl95.cn/index.php/Test/Ewm/index.html",type:"get",dataType:"json",contentType:"application/json",async:true,data:{"url":url},success:function(data){if(data.status==1){$(".box").css("display","none");$(".img").css("display","block");var picurl = "http://" + window.location.host + "/" + data.url;$(".ewm-pic").attr("src",picurl);}else{$(".error").css("display","block");}}});}});</script></body></html>PHP代码
<?php/*Time:2018-01-08 23:10
UpdateTime:2018-05-09User:shenlinPurpose:二维码 */namespace Test\Controller;use Think\Controller;class EwmController extends Controller {public function index(){if(IS_AJAX){//接收url$url = I(‘get.url‘);$UrlInfo = $this->qrcode($url);if($UrlInfo){$data[‘info‘] = "生成成功";$data[‘status‘] = 1;$data[‘url‘] = $UrlInfo;}else{$data[‘info‘] = "生成失败！";$data[‘status‘] = 0;}$this->ajaxReturn($data);}else{$this->display();} ???} ???public function qrcode($url){ ???????ob_clean(); ???????Vendor(‘phpqrcode.phpqrcode‘); ???????$level = 3; ???????$size = 4; ???????$errorCorrectionLevel = intval($level) ;//容错级别 ???????$matrixPointSize = intval($size);//生成图片大小 ???????//保存位置 ???????$path = "Public/qrcode/"; ???????// 生成的文件名 ???????$fileName = $path.date(‘YmdHis‘,time()).‘.png‘; ???????//生成二维码图片 ????????$object = new \QRcode(); ???????$object->png($url, $fileName, $errorCorrectionLevel, $matrixPointSize, 2); ?????????return $fileName; ???}}
三、完美结束，如果需要生成带logo的二维码，请参照文章“Thinkphp3.2版本结合phpqrcode生成带logo的二维码并提供下载”
Thinkphp3.2版本结合phpqrcode生成二维码并提供下载
原文地址：https://www.cnblogs.com/shenlin/p/9013176.html