Blog of a LAMP Developer based in Richmond, Surrey

The following method is pulled from a class, in a php command line tool, that I created to generate google sitemap files and also Google Base atom files.

What I wanted to do was, vailidate the generated xml files against a schema, before saving them.

You can do this via the command using xmllint.

xmllint –schema atom.xsd.xml –valid –noout /xmlfiles/.test.xml.tmp

However you can easily do this in PHP.

Here are the schema files.

siteindex
sitemap
atom.xsd

static function validate_google_xml($xmlfile, $type)
{

print("Validating {$xmlfile} \n");

$xdoc = new DomDocument;
if($type == 'siteindex')
{
$schema = self::$scriptDir.'siteindex.xsd';
@$xdoc->Load($xmlfile);
if (@$xdoc->schemaValidate($schema))
{
return true;
}
}elseif($type == 'sitemap')
{
$schema = self::$scriptDir.'sitemap.xsd';
//echo $schema ; die;
@$xdoc->Load($xmlfile);
if (@$xdoc->schemaValidate($schema))
{
return true;
}

}elseif($type == 'atom')
{
$schema = self::$scriptDir.'atom.xsd.xml';
//echo $schema ; die;
@$xdoc->Load($xmlfile);
if (@$xdoc->schemaValidate($schema))
{
return true;
}

}

}