Description:
------------
Script should return nothing if validation was successful.

With libxml_disable_entity_loader(False) it works as expected.

with libxml_disable_entity_loader(true);
Raise "failed to load external entity." and validation fails.

why is schema considered like external entity?




Test script:
---------------
<?php
libxml_use_internal_errors(true);
libxml_disable_entity_loader(true);

$contents = file_get_contents("zbx_screens_export.xml");
$xml = new DOMDocument();
                if(!$xml->loadXML($contents)){
                        $errors = libxml_get_errors();
                        print_r ($errors);};

$result = $xml->relaxNGValidate("screens.rng");
                if(!$result){
                        $errors = libxml_get_errors();
                        print_r ($errors);
                        };
?>



screens.rng  http://pastebin.com/QTV6MHaw 
zbx_screens_export.xml http://pastebin.com/AkcpLzwn


Actual result:
--------------
PHP Warning:  DOMDocument::relaxNGValidate(): Invalid RelaxNG in /home/tamerlan/relaxng.php on line 11
Array
(
    [0] => LibXMLError Object
        (
            [level] => 1
            [code] => 1549
            [column] => 0
            [message] => failed to load external entity "screens.rng"

            [file] => 
            [line] => 0
        )

    [1] => LibXMLError Object
        (
            [level] => 2
            [code] => 1065
            [column] => 0
            [message] => xmlRelaxNGParse: could not load screens.rng

            [file] => 
            [line] => 0
        )

)