PHP Legacy Support, stdClass issue - php

Question

I was recently handed some of our companies legacy PHP code to work with. There have been updates to the WSDL and API and PHP version (from 5.3 to 5.6) used with this product since the code worked and the code no longer works properly. Specifically;
$response = $mySforceConnection->query($query);
//var_dump($response);
$out='<table><tr><th>Spec Name</th><th>Name</th><th>SF Number</th><th>MW</th></tr>';
foreach ($response->records as $record) {
$out.='<tr><td>'.$record->fields->Spec->fields->Name.'</td>';
$out.='<td>'.$record->fields->Spec->fields->Owner->fields->FirstName.' ';
$out.=$record->fields->Spec->fields->Owner->fields->LastName.'</td>';
$out.='<td>'.$record->fields->Spec->fields->Owner->fields->EmployeeNumber.'</td>';
$out.='</table>';
exit($out);}
Error out with;
[13-Apr-2017 09:42:52 US/Eastern] PHP Notice: Undefined property: stdClass::$fields in T:\sample.php on line 44
[13-Apr-2017 09:42:52 US/Eastern] PHP Notice: Trying to get property of non-object in T:\sample.php on line 44
The $record returned is;
object(stdClass)#8 (3) {
["type"]=>
string(19) "SpecLineItem"
["Id"]=>
array(2) {
[0]=>
string(18) "00k6000000QX8E7AAL"
[1]=>
string(18) "00k6000000QX8E7AAL"
}
["any"]=>
array(1) {
["Spec"]=>
object(stdClass)#9 (3) {
["type"]=>
string(11) "Spec"
["Id"]=>
NULL
["any"]=>
array(2) {
[0]=>
string(74) "<sf:Name>Machineworks - National-Renewal-2015-01-01</sf:Name>"
["Owner"]=>
&object(stdClass)#10 (3) {
["type"]=>
string(4) "User"
["Id"]=>
NULL
["any"]=>
string(119) "<sf:EmployeeNumber>12345</sf:EmployeeNumber><sf:FirstName>John</sf:FirstName><sf:LastName>Doe</sf:LastName>"
}
}
}
}
}
Afraid this falls outside of my very limited PHP scope. How do I adjust the references in the $out construct to properly reference the data? Sorry for something that is likely so basic a question.