Easily parse XML documents with PHP 5.0 (1)

When XML is in sax, it has to build 3 functions, and to return data directly with the three function, it requires strong logic. In the process of dealing with different structure of XML, but also to reconstruct these three functions, trouble!

It's better to use DOM, but he sees every node as a nodal, and it's a lot of code to write, Trouble!

There are a lot of open source XML parsing class library, had seen a few before, but in the mind always feel not steadfast, feeling always follow someone else's butt behind.

These days in the Java, very tired, so decided to change the head, write some PHP code, in order to prevent the XML parsing process again to make me puzzled, it took a day to write the following XML parsing class, so there is the following things.

The implementation is done by wrapping "analytic results of Sax methods". In general, for me it is very practical, performance is also possible, basically can complete most of the processing requirements.

Function:

1, query/Add/modify/delete the basic XML file nodes.

2, export all the data of the XML file into an array.

3, the entire design using OO way, in the operation of the result set, the use of methods similar to the DOM

Disadvantages:

1, each node preferably with an ID (see the following example), each "node name" = "Node's label _ Node ID", if this ID value is not set, the program will automatically give him an ID, this ID is the node in his ancestor node in the number of positions, starting from 0.

2. When querying a node, you can use the "|" Symbolic Connection "node name" to proceed. These "node names" are the names of the ancestor nodes that are written in order.

Instructions for use:

Run the following example, and you can see how the function is used on the execution results page.

The code is implemented through PHP5 and cannot function properly in PHP4.

Since you have just finished, so there is no documentation, the following example shows only part of the function, the code is not very difficult, if you want to know more features, you can study the source code.

Directory structure:

      test.php      test.xml      xml/simpledocumentbase.php      xml/simpledocumentnode.php      XML/ simpledocumentroot.php      xml/simpledocumentparser.php

File: Test.xml

  
  
   

   
     Hualian 
   
   

    Chang ' An Street, Beijing, No. No. 9999 
   

   
     Supermarket chains 
   
   

    
     
     
       Food11 
     
     
 
     
       12.90 
     
     
 
    
    
 
     
     
       food12 
     
     
 
     
       22.10 
     
     
 
     
       good thing recommended 
     
     
 
    
    

   
   

   
    
 
     
     
       tel21 
     
     
 
     
       1290 
     
     
 
    
    

   
   

    
     
     
       coat31 
     
     
 
     
       112 
     
     
 
    
    
 
     
     
       Coat32 
     
     
 
      
     
     
 
    
    

   
   

   
    
 
    
     
 
     
       hot41 
     
     
 
      
     
     
 
    
    

   
   

  

File: test.php

<?php require_once "xml/simpledocumentparser.php";
Require_once "xml/simpledocumentbase.php";
Require_once "xml/simpledocumentroot.php";
Require_once "xml/simpledocumentnode.php";
$test = new Simpledocumentparser ();
$test->parse ("Test.xml");
$dom = $test->getsimpledocument ();
echo "<pre>";
echo "echo "Below is an array of the entire XML data returned through the function getsavedata ()";
echo "</font> Print_r ($dom->getsavedata ());
echo "echo "Below is through the SetValue () function, to add information to the root node, add to show the content of the result XML file";
echo "</font> $dom->setvalue ("Telphone", "123456789");
Echo Htmlspecialchars ($dom->getsavexml ());
echo "echo "Below is a getnode () function that returns information for all items under a category";
echo "</font> $obj = $dom->getnode ("Cat_food");
$nodeList = $obj->getnode ();
foreach ($nodeList as $node) {
$data = $node->getvalue ();
echo "<font color=red> Product Name:". $data [name]. " </font> <br>;
Print_r ($data);
Print_r ($node->getattribute ());
}
echo "echo "Below is the Findnodebypath () function that returns information about a product";
echo "</font> $obj = $dom->findnodebypath ("Cat_food|goods_food11");
if (!is_object ($obj)) {
echo "The product does not exist";
}else{
$data = $obj->getvalue ();
echo "<font color=red> Product Name:". $data [name]. " </font> <br>;
Print_r ($data);
Print_r ($obj->getattribute ());
}
echo "echo "Below is through the SetValue () function, to the product \" food11\ "Add attributes, and then show the added results";
echo "</font> $obj = $dom->findnodebypath ("Cat_food|goods_food11");
$obj->setvalue ("Leaveword", Array ("Value" => "This product is good",
"Attrs" =>array ("author" => "Hahawen", "Date" =>date (' y-m-d ')));
Echo Htmlspecialchars ($dom->getsavexml ());
echo "echo "Below is through the RemoveValue ()/removeattribute () function,
Change and delete attributes for the product \ "Food11\", and then display the results after the operation ";
echo "</font> $obj = $dom->findnodebypath ("cat_food|goods_food12");
$obj->setvalue ("name", "New Food12");
$obj->removevalue ("desc");
Echo Htmlspecialchars ($dom->getsavexml ());
echo "echo "Below is through the CreateNode () function, add the product, and then show the added result";
echo "</font> $obj = $dom->findnodebypath ("Cat_food");
$NEWOBJ = $obj->createnode ("goods", Array ("id" => "food13"));
$NEWOBJ->setvalue ("name", "Food13");
$NEWOBJ->setvalue ("Price", 100);
Echo Htmlspecialchars ($dom->getsavexml ());
echo "echo "Below is through the Removenode () function, delete the product, and then show the deleted result";
echo "</font> $obj = $dom->findnodebypath ("Cat_food");
$obj->removenode ("goods_food12");
Echo Htmlspecialchars ($dom->getsavexml ());
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