php第二十三节课

XML

XML：页面之间传递数据，跨平台传递

HTML：超文本标记语言,核心标签

XML特点：
1.标签名可以自己定义
2.有且只有一个根
3.大小写敏感
4.标签必须完整

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script src="../jquery-1.11.2.min.js"></script>
</head>

<body>
<select id="sel">
</select>
</body>
<script type="text/javascript">
$(document).ready(function(e) {

$.ajax({
url:"ChuLi.php",
dataType:"JSON",
success: function(data){

//alert(data);
var str = "";
for(var k in data)
{
str+="<option value='"+data[k][0]+"'>"+data[k][1]+"</option>";
}

$("#sel").html(str);

}
});

});
</script>
</html>

<body>
<select id="sel"></select>
</body>
<script type="text/javascript">
$(document).ready(function(e) {

$.ajax({
url:"chulixml.php",
dataType:"XML",
success:function(data){

var ch = $(data).find("nation").children();
var str = "";
for(var i=0;i<ch.length;i++)
{
var code = $(ch[i]).find("code").text();
var name = $(ch[i]).find("name").text();

str+="<option value='"+code+"'>"+name+"</option>";
}
$("#sel").html(str);

}
});
});
</script>
</html>

<?php
include("../DBDA.php");
$db = new DBDA();

$sql = "select * from Nation";

$attr = $db->Query($sql);

echo "<nation>";

foreach($attr as $k=>$v)
{
echo "<shuju{$k}>";

echo "<code>{$v[0]}</code>";
echo "<name>{$v[1]}</name>";

echo "</shuju{$k}>";
}

echo "</nation>";

<?php

include("../DBDA.php");
$db = new DBDA();

$sql = "select * from Nation";
$attr = $db->Query($sql);

echo json_encode($attr);

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php第二十三节课

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