Working With PHP XML Expat Parser And XML DOM

Save it by xm.xml

PHP script for using the concept

<html>
<body bgcolor="lightgreen">
<center>
<h4> XML Expat Parser ! <h4>
<hr>
<?php
//Initialize the XML parser
$parser=xml_parser_create();
//Function to use at the start of an element
function start($parser,$element_name,$element_attrs)
{
switch($element_name)
{
case "NOTE":
echo "-- Note --<br />";
break;
case "TO":
echo "To: ";
break;
case "FROM":
echo "From: ";
break;
case "HEADING":
echo "Heading: ";
break;
case "BODY":
echo "Message: ";
}
}
//Function to use at the end of an element
function stop($parser,$element_name)
{
echo "<br />";
}
//Function to use when finding character data
function char($parser,$data)
{
echo $data;
}
//Specify element handler
xml_set_element_handler($parser,"start","stop");
//Specify data handler
xml_set_character_data_handler($parser,"char");
//Open XML file
$fp=fopen("xm.xml","r");
//Read data
while ($data=fread($fp,4096))
{
xml_parse($parser,$data,feof($fp)) or
die (sprintf("XML Error: %s at line %d",
xml_error_string(xml_get_error_code($parser)),
xml_get_current_line_number($parser)));
}
//Free the XML parser
xml_parser_free($parser);
?>
</center>
</body>
</html>

Save it by xmlp.php

Output

To run the code, Open the XAMPP server and start the services like Apache and MySQL. Open the browser type: http://localhost/yourfoldername/xmlp.php

XML DOM with PHP

In this section we are going a have XML DOM concept. The concept is based on the built-in DOM parser that makes it possible to process XML documents in PHP.

Lets have a meaning of DOM in brief.

DOM provides a standard set of objects for HTML and XML documents, and a standard interface for accessing and manipulating them. DOM is separated into different parts (Core, XML, and HTML) and different DOM Levels.

• Core DOM - defines a standard set of objects for any structured document.
• XML DOM - defines a standard set of objects for XML documents.
• HTML DOM - defines a standard set of objects for HTML documents.

PHP script for the DOM concept

<html>
<body bgcolor="lightgreen">
<center>
<h4> PHP XML DOM ! <h4>
<hr>
<?php
$xmlDoc = new DOMDocument();
$xmlDoc->load("xm.xml");
print $xmlDoc->saveXML();
?>
</center>
</body>
</html>

Save it as dom.php.

Output

To run the code, Open the XAMPP server and start the services like Apache and MySQL. Open the browser type: http://localhost/yourfoldername/dom.php

Thanks !