PHP | DOMDocument relaxNGValidate() Function
The DOMDocument::relaxNGValidate() function is an inbuilt function in PHP which is used to performs relaxNG validation on the document. The relaxNG is an alternative to DDT and defines a structure which needs to be followed by the XML document.
Syntax:
bool DOMDocument::relaxNGValidate( string $filename )
Parameters: This function accepts a single parameter $filename which holds the RNG file.
Return Value: This function returns TRUE on success or FALSE on failure.
Below given programs illustrate the DOMDocument::relaxNGValidate() function in PHP:
Program 1:
- File name: rule.rng
<element name= "college"
<zeroOrMore>
<element name= "rollno" >
<element name= "name" >
<text/>
</element>
<element name= "subject" >
<text/>
</element>
</element>
</zeroOrMore>
</element>
|
- File name: index.php
<?php
$doc = new DOMDocument;
$doc ->loadXML("<?xml version=\"1.0\"?>
<college>
<rollno>
<name>John Smith</name>
<subject>Web</subject>
</rollno>
<rollno>
<name>John Doe</name>
<subject>CSE</subject>
</rollno>
</college>");
if ( $doc ->relaxNGValidate( 'rule.rng' )) {
echo "This document is valid!\n" ;
}
?>
|
- Output:
This document is valid!
Program 2:
Reference: https://www.php.net/manual/en/domdocument.relaxngvalidate.php
Last Updated :
20 Feb, 2020
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