Simplexml and xpath

[XPath node search]

<? PHP // 1. create a domdocument object $ xmldoc = new domdocument (); // 2. load XML $ xmldoc-> load ("XXX. XML "); // 3. convert to domxpath $ domxpath = new domxpath ($ xmldoc); // 4. use the XPath technology to query the required nodes $ node_list = $ domxpath-> query ("/AAA/BBB/CCC");?>

 

Simplexml can be loaded in three forms]

1. Load the XML file: simplexml_load_file ("XXX. xml ");

2. Load the DOM object: simplexml_load_dom ($ dom);

3. load string: simplexml_load_string ($ string); [The string must be written according to the standard of the XML file]

 

[Combination of simplexml and XPath]

Simplexml_load_file ("XXX. xml")-> XPath ("//*");

Simplexml and xpath