Summary of methods for generating QR code images in PHP

The first method:

1, The first method: using the most widely used and most convenient Google api technology;

2

,<?php
//封装生成二维码图片的函数（方法）
/* 利用google api生成二维码图片
 
$content：二维码内容参数
$size：生成二维码的尺寸，宽度和高度的值
$lev：可选参数，纠错等级
$margin：生成的二维码离边框的距离*/
function create_erweima($content, $size = &#39;100&#39;, $lev = &#39;L&#39;, $margin= &#39;0&#39;) { $content = urlencode($content);
$image = &#39;<img src="http://chart.apis.google.com/...&#39;.$size.&#39;x&#39;.$size.&#39;&cht=qr&chld=&#39;.$lev.&#39;|&#39;.$margin.&#39;&chl=&#39;.$content.&#39;" widht="&#39;.$size.&#39;" height="&#39;.$size.&#39;" />&#39;;
 
return $image;
}

/* 使用注意事项 先构建内容字符串 调用函数生成 */
//构建内容字符串
$content="微信公众平台：思维与逻辑rn公众号:siweiyuluoji";
//调用函数生成二维码图片
echo create_erweima($content);
//把网址生成二维码；
$url="http://jingyan.baidu.com/article/0964eca23c39ce8285f5363c.html";
$url.="rn";
$url.="http://jingyan.baidu.com/article/03b2f78c4d28ae5ea237ae15.html";
echo create_erweima($url);
?>

Second One method:

Download and unzip, then copy (or copy) the phpqrcode folder to the project;

，<?php
//引入核心库文件
include "phpqrcode/phpqrcode.php";
//定义纠错级别
$errorLevel = "L";
//定义生成图片宽度和高度;默认为3
$size = "4";
//定义生成内容
$content="微信公众平台：思维与逻辑;公众号:siweiyuluoji";
//调用QRcode类的静态方法png生成二维码图片//
QRcode::png($content, false, $errorLevel, $size);
//生成网址类型
$url="http://jingyan.baidu.com/article/48a42057bff0d2a925250464.html";
$url.="rn";
$url.="http://jingyan.baidu.com/article/acf728fd22fae8f8e510a3d6.html";
$url.="rn";
$url.="http://jingyan.baidu.com/article/92255446953d53851648f412.html";
QRcode::png($url, false, $errorLevel, $size);
 
?>

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