DOMDocument Function schemaValidate

PHP Version: (No version information might be only in CVS. I have used this function in PHP5)

DOM: W3C DOM Level 1

Description

This function is used to validate a document based on a schema. In this example, I have loaded DOM Document from a valid XML file and validated it using against the schema using schemaValidate() function.

Usage:

boolDOMDocument->schemaValidate ( string filename)

Validates a document based on a schema defined by filename.

Content of XML file:

This is a valid xml against schema( Please see below the content of schema).

     <?xml version="1.0" encoding="UTF-8"?>

<employee>

     <employeename id="myId">test</employeename>

     <employeeaddress>test123</employeeaddress>

     <SSN>12343456</SSN>

     <company>XYZ Corporation</company>

</employee>

Content of Schema file:

    <?xml version="1.0" encoding="UTF-8"?>

<xs:schemaxmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">

     <xs:element name="SSN" type="xs:int"/>

     <xs:element name="company" type="xs:string"/>

     <xs:element name="employee">

<xs:complexType>

               <xs:sequence>

                    <xs:element ref="employeename"/>

                    <xs:element ref="employeeaddress"/>

                    <xs:element ref="SSN"/>

                    <xs:element ref="company"/>

               </xs:sequence>

</xs:complexType>

     </xs:element>

     <xs:element name="employeeaddress" type="xs:string"/>

     <xs:element name="employeename">

<xs:complexType>

               <xs:simpleContent>

                    <xs:extension base="xs:string">

                         <xs:attribute name="id" type="xs:string" use="required"/>

                    </xs:extension>

               </xs:simpleContent>

</xs:complexType>

     </xs:element>

     </xs:schema>

PHP Code:

In this example, I have populated the DOM Document from a XML file.

<?php

$doc = new DomDocument;

//declare file variable

$file = 'C:/topxml_demo/php/xml_files/employee.xml';

//declare schema

$schema  = 'C:/topxml_demo/php/xml_files/employee.xsd';

// Load the xml file into DOMDocument

$doc->Load($file);

//validate the DOMDocument

if ($doc->schemaValidate($schema)) {

    print "$file is valid.\n";

 } else {

     print "$file is invalid.\n";

 }

?>

Output: