本文目录一览：
如何通过PHP生成和获取XML格式数据
1自己拼，XML编码
?php
header('Content-type:text/xml');
echo "?xml version='1.0' encoding='utf-8'";
echo "book";
echo "PHP";
echo "namePHP程序开发范例宝典/name";
echo "price 单位='元/本'89.00/price";
echo "date2007-09-01/date";
echo "/PHP";
echo "/book";
?
拼接的效果
2从数据库中查询再拼XML编码
?php
$dsn="mysql:host=localhost;dbname=test";
try {
$pdo = new PDO($dsn,'root','passwowd'); //初始化一个PDO对象，就是创建了数据库连接对象$pdo
$query="select * from book"; //定义SQL语句
$pdo-query('set names utf8');
$result=$pdo-prepare($query); //准备查询语句
$result-execute(); //执行查询语句，并返回结果集
$arr='';
while($res=$result-fetch()){
$arr.='PHPid'.$res[0].'/idname'.$res[1].'/namedate'.$res[2].'/date'.'price'.$res[3].'/price/PHP';
}
echo "?xml version='1.0' encoding='utf-8'?book".$arr.'/book';
} catch (PDOException $e) {
die ("Error!: ".$e-getMessage()."br");
}
?
拼接的效果
3使用ajax获取，DOM解析
!DOCTYPE html
html lang="en"
head
meta charset="UTF-8"
titlexml/title
/head
body
script
function check(){
var xhr=new XMLHttpRequest();
xhr.open('GET','xml.php');
xhr.onreadystatechange=function(){
if(xhr.readyState==4 xhr.status==200){
console.log(xhr.responseText);
//初始化 DOM解析对象
var domParser = new DOMParser();
//字符串解码为对象
var xmlDoc = domParser.parseFromString(xhr.responseText,'text/xml');
//按标签名获取元素 返回数组
var elements = xmlDoc.getElementsByTagName('PHP');
//拼接html格式字符串
var str ='trthid/ththname/ththdate/ththprice/th/tr';
for (var i=0;ielements.length;i++){
var id=elements[i].getElementsByTagName('id')[0].firstChild.nodeValue;
var name=elements[i].getElementsByTagName('name')[0].firstChild.nodeValue;
var date=elements[i].getElementsByTagName('date')[0].firstChild.nodeValue;
var price=elements[i].getElementsByTagName('price')[0].firstChild.nodeValue;
str+= 'trtd'+id+'/tdtd'+name+'/tdtd'+date+'/tdtd'+price+'/td/tr';
}
document.getElementById('table2').innerHTML=str;
}
};
xhr.send(null);
}
/script
button onclick="check();"点我/button
table id="table2" border="2" cellspacing="0"
/table
/body
/html
效果
1
2
补充：
使用JSON
1数据库查询，自己拼 JSON 编码
?php
$dsn="mysql:host=localhost;dbname=test";
try {
$pdo = new PDO($dsn,'root','password'); //初始化一个PDO对象，就是创建了数据库连接对象$pdo
$query="select * from book"; //定义SQL语句
$pdo-query('set names utf8');
$result=$pdo-prepare($query); //准备查询语句
$result-execute(); //执行查询语句，并返回结果集
$a=$arr='';
while($res=$result-fetch()){
$arr.='{"id":'.'"'.$res[0].'",'.'"name":'.'"'.$res[1].'",'.'"time":'.'"'.$res[2].'",'.'"jia":'.'"'.$res[3].'",'.'"zhe":'.'"'.$res[4].'",'.'"chu":'.'"'.$res[5].'"},';
}
echo $a="[".substr($arr,0,strlen($arr)-1)."]";
} catch (PDOException $e) {
die ("Error!: ".$e-getMessage()."br");
}
?
2数据库查询，函数 JSON 编码
?php
$dsn="mysql:host=localhost;dbname=test";
try {
$pdo = new PDO($dsn,'root','password'); //初始化一个PDO对象，就是创建了数据库连接对象$pdo
$query="select * from book"; //定义SQL语句
$pdo-query('set names utf8');
$result=$pdo-prepare($query); //准备查询语句
$result-execute(); //执行查询语句，并返回结果集
$res=$result-fetchAll();
//JSON 编码
echo json_encode($res);
} catch (PDOException $e) {
die ("Error!: ".$e-getMessage()."br/");
}
?
效果
3ajax获取，JSON解析
!DOCTYPE html
html lang="en"
head
meta charset="UTF-8"
titleJSON/title
/head
body
script
function check() {
var XHR = new XMLHttpRequest();
XHR.open('GET','JSON.php');
XHR.onreadystatechange = function (){
if(XHR.readyState == 4 XHR.status ==200){
var books =JSON .parse(XHR.responseText);
var books2='trthid/ththbookname/ththtime/ththprice/ththmarker/ththpublisher/th/tr'
for (var i=0;ibooks.length;i++){
books2+= 'trtd'+(books[i ].id)+'/tdtd'+(books[i ].name)+'/tdtd'+(books[i ].time)+'/tdtd'+(books[i ].jia)+'/tdtd'+(books[i ].zhe)+'/tdtd'+(books[i ].chu)+'/td/tr';
}
document.getElementById('table2').innerHTML=books2;
}
};
XHR.send(null);
}
/script
input type="button" value="点我" onclick="check();"
table id="table2" border="2" cellspacing="0"/table
/body
/html
PHP如何取XML中数据
转成数组
?php/*** function：使用字符串方式读XML文件* author：JetWu* date：2016.12.03**/$file = './write_str.xml';$con = file_get_contents($file); //XML标签配置$xmlTag = array( 'starttime', 'endtime', 'school'); $arr = array();foreach($xmlTag as $x) { preg_match_all("/".$x.".*/".$x."/", $con, $temp); $arr[] = $temp[0];}//去除XML标签并组装数据$data = array();foreach($arr as $key = $value) { foreach($value as $k = $v) { $a = explode($xmlTag[$key].'', $v); $v = substr($a[1], 0, strlen($a[1])-2); $data[$k][$xmlTag[$key]] = $v; }}echo 'pre';print_r($data);
PHP怎么解析微信支付结果返回的xml
php解析xml报文的方法是DOMDocument：
解析方法如下：
$xmlstring = XML
?xml version='1.0'?
document
cmd attr='default'login/cmd
loginimdonkey/login
/document
XML;
$dom = new DOMDocument();
$dom-loadXML($xmlstring);
print_r(getArray($dom-documentElement));
function getArray($node) {
$array = false;
if ($node-hasAttributes()) {
foreach ($node-attributes as $attr) {
$array[$attr-nodeName] = $attr-nodeValue;
}
}
if ($node-hasChildNodes()) {
if ($node-childNodes-length == 1) {
$array[$node-firstChild-nodeName] = getArray($node-firstChild);
} else {
foreach ($node-childNodes as $childNode) {
if ($childNode-nodeType != XML_TEXT_NODE) {
$array[$childNode-nodeName][] = getArray($childNode);
}
}
}
} else {
return $node-nodeValue;
}
return $array;
}