Notice: Only variables should be passed by reference en PHP
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Strict warning: Only variables should be passed by reference in eval() [#2064265] | Drupal.org
Only variables should be passed by reference in D:\xamp\htdocs\php \QB\src\Core\Http\Serialization\XmlObjectSerializer.php on line 54 · Issue #180 · intuit/QuickBooks-V3-PHP-SDK · GitHub