Php parsing xml_PHP tutorial

1. simplexml

SimpleXML converts XML documents into objects, such as:
Element - A single property converted to a SimpleXMLElement object. When there are multiple elements at the same level, they are placed in an array.
Properties - Accessed using an associative array, where the subscripts correspond to the property names.
Element data - Text data from the element is converted to a string. If an element has multiple text nodes, they are arranged in the order in which they are found.
SimpleXML is very fast to use when performing basic tasks like:
Read XML file
Extract data from XML string
Edit text node or attribute

 xml version="1.0" encoding="utf-8"?>    
<phplamp>    
<post>    
<title id="1">PHP XML处理介绍一</title>    
<details>详细内容一</details>    
</post>    
<post>    
<title id="2">PHP XML处理介绍二</title>    
<details>详细内容二</details>    
</post>    
<post>    
<title id="3">PHP XML处理介绍三</title>    
<details>详细内容三</details>    
</post>    
</phplamp>  

<?xml version="1.0" encoding="utf-8"?>  
<phplamp>  
<post>  
<title id="1">PHP XML处理介绍一</title>  
<details>详细内容一</details>  
</post>  
<post>  
<title id="2">PHP XML处理介绍二</title>  
<details>详细内容二</details>  
</post>  
<post>  
<title id="3">PHP XML处理介绍三</title>  
<details>详细内容三</details>  
</post>  
</phplamp> attributes() 获得属性

php    
/**   
* 加载Xml文件   
*/    
$xml = simplexml_load_file("text.xml");    
/**   
* 如果Xml为字符串的话可以用下面这个
方法，后面的使用方法一样   
* $xml = simplexml_load_string   
*/    
/**   
* 遍历$xml对象   
*/    
foreach ($xml as $key => $value) {    
// 获取属性     
$attr = $value->title->attributes();    
echo "Id: " . $attr[&#39;id&#39;] . "</br>";    
echo "Title: " . $value->title . "</br>";    
echo "Details: " . $value->details  
. "</br></br>";    
}    
?>   

<?php  
/**  
* 加载Xml文件  
*/  
$xml = simplexml_load_file("text.xml");  
/**  
* 如果Xml为字符串的话可以用下面这个
方法，后面的使用方法一样  
* $xml = simplexml_load_string  
*/  
/**  
* 遍历$xml对象  
*/  
foreach ($xml as $key => $value) {  
// 获取属性  
$attr = $value->title->attributes();  
echo "Id: " . $attr[&#39;id&#39;] . "</br>";  
echo "Title: " . $value->title . "</br>";  
echo "Details: " . $value->details
. "</br></br>";  
}  
?> 


 

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