二维条码/二维码可以分为堆叠式/行排式二维条码和矩阵式二维条码。
堆叠式/行排式二维条码形态上是由多行短截的一维5条码堆叠而成;矩阵式二维条码以矩阵的形式组成,在矩阵相应元素位置上用“点”表示二进制“1”,
用“空”表示二进制“0”,“点”和“空”的排列组成代码。
<?php
$urlToEncode="
http://www.csd2n.net";//要生成二维码的网址
generateQRfromGoogle($urlToEncode);
function generateQRfromGoogle($chl,$widhtHeight =‘150‘,$EC_level=‘L‘,$margin=‘0‘)
{
$url = urlencode($url);
echo ‘<img src="
http://chart.apis.google.com/chart?chs=‘.$widhtHeight.‘x‘.$widhtHeight.‘&cht=qr&chld=‘.$EC_level.‘|‘.$margin.‘&chl=‘.$chl.‘" alt="QR code" widhtHeight="‘.$size.‘" widhtHeight="‘.$size.‘"/>‘;//Google API接口,若失效可到Google网址查询最新接口
}
?>
<script type="text/javascript" src="
http://sandbox.runjs.cn/uploads/rs/142/gjxgxu0g/qrgen.min.js"></script>
<div id=qrcode></div>
<script type="text/javascript">
qrcode(document.getElementById(‘qrcode‘),{
data:‘http://geraldl.net‘
});
</script>
<!doctype html>
<html>
<head>
<title>QRCode</title>
<script type="text/javascript" src="
http://files.cnblogs.com/webers/qrcode-light.js"></script>
<script type="text/javascript" src="
http://files.cnblogs.com/webers/qrgen.js"></script>
</head>
<body>
<div>
<h1>二维码生成</h1>
<div>
图片: <img id=qrimg src=http://www.jb51.net/uploadfile/2014/1219/20141219081025437.png>
<label><input id=qrclearedges type=checkbox checked>清理边缘</label>
</div>
<div><input id=fimg type=file></div>
<div>文本: <textarea id=qrtext>http://www.btgoogle.com</textarea></div>
<div>大小: <input id=cellSize type=range min=2 max=10 value=6></div>
<table>
<tr>
<td rowspan=2>效果:</td>
<td colspan=3><input id=cellEffect type=range min=-50 max=50 step=5 value=0></td>
</tr>
<tr id=cellEffectStops>
<td align=left><a href=# data=l>液体</a></td>
<td align=center><a href=# data=s>方块</a></td>
<td align=right><a href=# data=r>圆</a></td>
</tr>
</table>
<div>
Foreground color: <input id=colorFore type=color value=#4169e1>
Background color: <input id=colorBack type=color value=#ffffff><br>
Outside-border color: <input id=colorOut type=color value=#cd5c5c>
Inside-border color: <input id=colorIn type=color value=#191970>
</div>
<button id=qrgen>生成</button>
</div>
<div id=qrcode></div>
<script src="
http://files.cnblogs.com/webers/take.js"></script>
</body>