1自己拼,XML编码
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?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
1、首先我们做一个简单的xml文件
?xml version="1.0 encoding="UTF-8"?humanszhangyingname张映/namesex男/sexold28/old/zhangyingtanknametank/namesex男/sexold28/old/tank/humans
2、
php读取xml的几种方法:
1)DOMDocument读取xml
?php $doc = new DOMDocument(); $doc-load('person.xml'); //读取xml文件 $humans = $doc-getElementsByTagName( "humans" ); //取得humans标签的对象数组 foreach( $humans as $human ) { $names = $human-getElementsByTagName( "name" ); //取得name的标签的对象数组 $name = $names-item(0)-nodeValue; //取得node中的值,如name /name $sexs = $human-getElementsByTagName( "sex" ); $sex = $sexs-item(0)-nodeValue; $olds = $human-getElementsByTagName( "old" ); $old = $olds-item(0)-nodeValue; echo "$name - $sex - $old\n"; } ?
2)simplexml读取xml
?php $xml_array=simplexml_load_file('person.xml'); //将XML中的数据,读取到数组对象中 foreach($xml_array as $tmp){ echo $tmp-name."-".$tmp-sex."-".$tmp-old."br"; } ?
3)用php正则表达式来记取数据
?php $xml = ""; $f = fopen('person.xml', 'r'); while( $data = fread( $f, 4096 ) ) { $xml .= $data; } fclose( $f ); // 上面读取数据 preg_match_all( "/\humans\(.*?)\\/humans\/s", $xml, $humans ); //匹配最外层标签里面的内容 foreach( $humans[1] as $k=$human ) { preg_match_all( "/\name\(.*?)\\/name\/", $human, $name ); //匹配出名字 preg_match_all( "/\sex\(.*?)\\/sex\/", $human, $sex ); //匹配出性别 preg_match_all( "/\old\(.*?)\\/old\/", $human, $old ); //匹配出年龄 } foreach($name[1] as $key=$val){ echo $val." - ".$sex[$key][1]." - ".$old[$key][1]."br" ; } ?
4)xmlreader来读取xml数据
?php $reader = new XMLReader(); $reader-open('person.xml'); //读取xml数据 $i=1; while ($reader-read()) { //是否读取 if ($reader-nodeType == XMLReader::TEXT) { //判断node类型 if($i%3){ echo $reader-value; //取得node的值 }else{ echo $reader-value."br" ; } $i++; } } ?
转成数组
?php/*** function:使用字符串方式读XML文件* author:JetWu* date:2016.12.03**/$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);
给个小例子:
1.直接是xml字符串
?php
$string = XML
?xml version='1.0'?
document
titleForty What?/title
fromJoe/from
toJane/to
body
I know that's the answer -- but what's the question?
/body
/document
XML;
$xml = simplexml_load_string($string);
print_r($xml);
?
2. xml文件的
?php
if (file_exists('test.xml')) {
$xml = simplexml_load_file('test.xml');
print_r($xml);
} else {
exit('Failed to open test.xml.');
}
?
编码问题,function
characterData改成如下
function
characterData($parser_instance,
$xml_data)
{
global
$name,$position;
$xml_data=iconv("utf-8","gb2312",$xml_data);//转换成gb2312
if($position)
echo
$xml_data."br";
if($name)
echo
$xml_data."br";
}
显示的那个页面也要有charset=gb2312
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