Description:
------------
The bit of code below has always been used to verify incoming XML against a Schema XSD file.

It worked fine under 5.6.22, and last 3 years, but after upgrade to 5.6.25 would get the schema mis-matches shown below, note all the values it was testing are shown as blank, in the message, but are there in the XML file.

I can send sample XML and XSD files if required


Test script:
---------------
$xml = new XMLReader();
if(!$xml->open($dir.$file,null,LIBXML_PARSEHUGE)){
  logging('Unable to Open XML file (Full Parse 1):'.$dir.$file);
  return false;
}
$xml->setSchema($xsd_dir.$xsd);
while($xml->read()){
}


Actual result:
--------------
XSD: Element 'request', attribute 'schema_version': '' is not a valid value of the atomic type 'xs:decimal'.
Element 'request', attribute 'schema_id': The value '(null)' does not match the fixed value constraint 'WBC-CSR-Request.xsd'.
Element 'request', attribute 'requestor': The value '(null)' does not match the fixed value constraint 'WBC-RFS'.
Element 'service', attribute 'requestType': [facet 'enumeration'] The value '' is not an element of the set {'Catalogue', 'Bespoke', 'Defined', 'Other'}.
Element 'service', attribute 'requestType': '' is not a valid value of the atomic type 'sr_type'.
Element 'service', attribute 'requestId': [facet 'length'] The value '' has a length of '0'; this differs from the allowed length of '15'.
Element 'service', attribute 'requestId': '' is not a valid value of the atomic type 'sr_id_type'.
Element 'project', attribute 'type': [facet 'enumeration'] The value '' is not an element of the set {'bau', 'project'}.
Element 'project', attribute 'type': '' is not a valid value of the atomic type 'sr_project_type'.
Element 'contact', attribute 'type': [facet 'enumeration'] The value '' is not an element of the set {'primary', 'alternate', 'original requestor', 'primary - PIV', 'alternate - PIV'}.
Element 'contact', attribute 'type': '' is not a valid value of the atomic type 'contact_type_type'.
Element 'contact', attribute 'id': [facet 'minLength'] The value '' has a length of '0'; this underruns the allowed minimum length of '1'.
Element 'contact', attribute 'id': '' is not a valid value of the local atomic type.
Element 'contact', attribute 'type': [facet 'enumeration'] The value '' is not an element of the set {'primary', 'alternate', 'original requestor', 'primary - PIV', 'alternate - PIV'}.
Element 'contact', attribute 'type': '' is not a valid value of the atomic type 'contact_type_type'.
Element 'contact', attribute 'id': [facet 'minLength'] The value '' has a length of '0'; this underruns the allowed minimum length of '1'.
Element 'contact', attribute 'id': '' is not a valid value of the local atomic type.
Element 'contact', attribute 'type': [facet 'enumeration'] The value '' is not an element of the set {'primary', 'alternate', 'original requestor', 'primary - PIV', 'alternate - PIV'}.
Element 'contact', attribute 'type': '' is not a valid value of the atomic type 'contact_type_type'.
Element 'contact', attribute 'id': [facet 'minLength'] The value '' has a length of '0'; this underruns the allowed minimum length of '1'.
Element 'contact', attribute 'id': '' is not a valid value of the local atomic type.
Element 'SLAs', attribute 'count': '' is not a valid value of the atomic type 'xs:positiveInteger'.
Element 'workinfos', attribute 'count': '' is not a valid value of the atomic type 'xs:positiveInteger'.
Element 'workinfo', attribute 'date': '' is not a valid value of the atomic type 'xs:dateTime'.
Element 'workinfo', attribute 'type': [facet 'enumeration'] The value '' is not an element of the set {'External Dependancy', 'Notes for the Vendor', 'SLA Notes for the Vendor'}.
Element 'workinfo', attribute 'type': '' is not a valid value of the atomic type 'csr_workinfo_request_type'.
Element 'attachments', attribute 'count': '' is not a valid value of the atomic type 'xs:positiveInteger'.
Element 'attachment', attribute 'date': '' is not a valid value of the atomic type 'xs:dateTime'.
Element 'attachment', attribute 'type': [facet 'enumeration'] The value '' is not an element of the set {'Service Plan', 'Test Plan', 'Test Results', 'Customer Survey'}.
Element 'attachment', attribute 'type': '' is not a valid value of the atomic type 'csr_attachment_request_type'.