It returns XML string from a SimpleXML element

Example

<?php
$xml = simplexml_load_file(‘test.xml’);
echo $xml->asXML();
?>

Output

Apache PHP Javascript

XML

<?xml version=”1.0″ encoding=”ISO-8859-1″?>
<web>
<server>Apache</server>
<lan>PHP</lan>
<client>Javascript</client>
</web>

It adds a child element the SimpleXML element

Example

<?php
$xml = simplexml_load_file(“test.xml”);
$xml->server[0]->addChild(“version”, “5”);
foreach ($xml->server->children() as $child)
{
echo $child . “<br />”;
}
?>

Output

5

XML

<?xml version=”1.0″ encoding=”ISO-8859-1″?>
<web>
<server>Apache</server>
<lan>PHP</lan>
<client>Javascript</client>
</web>

It adds an attribute to the SimpleXML element

Example

<?php
$xmlObj = simplexml_load_file(“test.xml”);
$xmlObj->client[0]->addAttribute(“ver”, “5”);
foreach($xmlObj->client[0]->attributes() as $a => $b) {
echo $a,’=”‘,$b,””</br>”;
}
?>

Output

ver=”5″

XML

<?xml version=”1.0″ encoding=”ISO-8859-1″?>
<web>
<server>Apache</server>
<lan>PHP</lan>
<client>Javascript</client>
</web>

It creates a new SimpleXMLElement object.

Example

<?php
class PHPCode {
function __construct() {
print “Inside constructor”;
}

}

$phpObj = new PHPCode();
?>

Output

Inside constructor

• __construct() – It creates a new SimpleXMLElement object.
• addAttribute() – It adds an attribute to the SimpleXML element
• addChild() – It adds a child element the SimpleXML element
• asXML() – It returns XML string from a SimpleXML element
• attributes() – It returns a SimpleXML element’s attributes
• children() – It returns the children of a specified node
• getDocNamespaces() – It returns the children of a specified node
• getName() – It returns the name of a SimpleXML element
• getNamespace() – It returns the namespaces from XML data
• registerXPathNamespace() – It creates a namespace context for the next XPath query
• simplexml_import_dom() – It returns SimpleXMLElement object from a DOM node
• simplexml_load_file() – It returns  SimpleXMLElement object from an XML document
• simplexml_load_string() – It returns  SimpleXMLElement object from an XML string
• xpath() – It runs an XPath query on XML data