php二维码生成,php
php二维码生成,php
本文介绍两种使用 php 生成二维码的方法。
(1)利用google生成二维码的开放接口,代码如下:
/** * google api 二维码生成【QRcode可以存储最多4296个字母数字类型的任意文本,具体可以查看二维码数据格式】 * @param string $data 二维码包含的信息,可以是数字、字符、二进制信息、汉字。不能混合数据类型,数据必须经过UTF-8 URL-encoded.如果需要传递的信息超过2K个字节,请使用POST方式 * @param int $widhtHeight 生成二维码的尺寸设置 * @param string $EC_level 可选纠错级别,QR码支持四个等级纠错,用来恢复丢失的、读错的、模糊的、数据。 * L-默认:可以识别已损失的7%的数据 * M-可以识别已损失15%的数据 * Q-可以识别已损失25%的数据 * H-可以识别已损失30%的数据 * @param int $margin 生成的二维码离图片边框的距离 */ function generateQRfromGoogle($data,$widhtHeight='150',$EC_level='L',$margin='0'){ $url=urlencode($data); echo '<img src="/static/imghw/default1.png" data-src="http://chart.apis.google.com/chart?chs='.$widhtHeight.'x'.$widhtHeight.'&cht=qr&chld='.$EC_level.'|'.$margin.'&chl='.$data.'" class="lazy".$widhtHeight.'x'.$widhtHeight.'&cht=qr&chld='.$EC_level.'|'.$margin.'&chl='.$data.'" widhtHeight="'.$widhtHeight.'" widhtHeight="'.$widhtHeight.'"/ alt="php二维码生成,php" >'; }
使用方法:
$data='版权所有:http://www.bkjia.com'; generateQRfromGoogle($data);
post方法实现请求google api 生成二维码的方式:
function qrcode($width,$height,$string){ $post_data=array(); $post_data['cht']='qr'; $post_data['chs']=$width."x".$height; $post_data['chl']=$string; $post_data['choe']="UTF-8"; $url="http://chart.apis.google.com/chart"; $data_Array=array(); foreach($post_data as $key=>$value){ $data_Array[]=$key.'='.$value; } $data=implode("&",$data_Array); $ch=curl_init(); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_POSTFIELDS,$data); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $result=curl_exec($ch); //echo "<img src =\"data:image/png;base64,".base64_encode($result)."\" alt="php二维码生成,php" >"; 注意,不写header的写法 return $result; }
使用方法:
header("Content-type:image/png"); $width=300; $height=300; $data='版权所有:http://www.bkjia.com'; echo qrcode($width,$height,$data);
当然生成的图片同上面是一样的。
(2)使用php QR Code类库生成二维码
注意使用该类库必须首先下载类库包,下载地址:
地址:http://phpqrcode.sourceforge.net/
下载下来的压缩包里面有很多示例,可以自行研究,下面给出一个简单的使用案例(具体参数的意思和上面大同小异):
<?php include "./phpqrcode.php"; $data='版权所有:http://www.bkjia.com'; $errorCorrectionLevel="L"; $matrixPointSize="4"; QRcode::png($data,false,$errorCorrectionLevel,$matrixPointSize);
以上所述就是本文的全部内容了,希望对大家熟练掌握php生产二维码能够有所帮助。

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