PHP - XML Introduction !!
In this article we will discuss about PHP - XML.we will learn what is xml ? and why we use xml ?
What Is XML ?
- XML stands for eXtensible Markup Language
- XML is a markup language like HTML
- XML was designed to store and transfer data which is not possible in HTML
- XML parsers are use to read and update the data by using web browsers.
- XML stores data in the form of 'text'.
- XML is human-readable and machine-readable both.
Difference Between XML And HTML
- HTML uses only predefined tags. In XML we can make own tags.
- HTML makes static web page through XML we can store and transfer the data.
- XML focus on what data is and HTML focus on how data actually looks like.
Types Of XML
- Tree based
- Event based
XML Parser Extension
XML parser work based on libxml/
Types Of XML Parser
- Simple XML Parser
- DOM Parser
- XML Parse
- XML Reader
Simple XML Parser
It is tree based XML parser.
It parses the simple xml file.
It only load the xml file from the specific path.
DOM Parser
It is used to parse highly complex xml file.
It is used as a interface for modify the xml file.
It encoded with UTF-8 characterset encoding.
It is also known as complex node parser.
XML Parse
It creates the XML file and parse xml fle.
It is faster than above parsers.
It is based on SAX Parse.
XML Reader
It is used to read the XML file in the faster way.
It is work with xml validation for complex xml document.
It is also known as PULL XML Parse.
Syntax Of XML
<root element>
<child>
<sub child>....data....</sub child>
<sub child>....data....</sub child>
<sub child>....data....</sub child>
</child>
</root element>
Example :
note.xml
<class>
<notebook>
<name> xyz </name>
<author> antia hamelton </author>
<price>300</price>
</notebook>
</class>
Here, in above example we create a XML file which save with ' .xml ' extension.
Here Root element is class.
Child element is notebook and sub child element is name, author, price.
In this we discuss about XML, types of XML, different XML parsers and other things. I hope you eill like it.for more PHP-XML articles keep join us.
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