status = true; $response->attachmentCollection = new AttachmentCollection([ new Attachment('filename.txt', 'text/plain', 'plaintext file'), new Attachment('filename.html', 'text/html', 'Hello world'), new Attachment( 'filename.docx', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', file_get_contents(SoapServerAndSoapClientCommunicationTest::LARGE_SWA_FILE) ), ]); return $response; } }