PHP Operation XML

PHP Operation XML

I. Using simplexml to manipulate XML

(1) Creating XML

$xml = <<<xml

<?xml encoding= ' utf-8 ' version= ' 1.0 '?>

Xml;

$s _xml = new SimpleXMLElement ($xml);

(2) generate XML $s _xml->asxml (' test.xml ');

(3) load XML $sxml = simplexml_load_file (' test.xml ');

(4) parsing XML $sxml->asxml ();

(5) read out the XML $sxml node name, if there are more than one node in the same node after the Subscript: section name [subscript number], Note that the subscript is starting from 0; if a node contains multi-level nodes, it can be accessed by using the section Name. The default is the first One.

(6) Get node Tag properties

$sxml-node name [nodes subscript]-> section name->attributes () [subscript]; The default is the first

(7) using XPath to get a node

$version = $sxml->xpath ('/root node/byte point ');

The next access method is the same as Above.

Ii. using DOMDocument to manipulate XML

1, read the external XML to operate

(1) creating a DOM object

$dom = new DOMDocument ();

(2) Loading XML

$dom->load (' Test.xml ');

(3) Read node

$version = $dom->getelementsbytagname (' version ');

(4) get the value of the corresponding node

Echo $version->item (subscript number)->nodevalue;

2. Create an internal XML operation

declaring XML

$_doc = new DOMDocument (' 1.0 ', ' Utf-8 ');

Typesetting format

$_doc->formatoutput = true;

Create a primary label

$_root = $_doc->createelement (' root ');

Create a Sub-label

$_version = $_doc->createelement (' version ');

Assign a value to a child tag

$_versiontextnode = $_doc->createtextnode (' 1.0 ');

Put the value in the Sub-tab

$_version->appendchild ($_versiontextnode);

Place a child tag in the parent tag

$_root->appendchild ($_version);

Put the parent element in the XML

$_doc->appendchild ($_root);

Generating an XML file

$_doc->save (' Domcxml.xml ');

PHP Operation XML