Soap: Upload binary data - soap

Question

I'm making a Drupal/PHP Module to upload information to Taleo (Talent Management) database using SOAP. This works well with regular data like text and dates, but not with a file.
The manual shows an example of a file attachment:
createAttachment Test Case:
<soapenv:Header/>
<soapenv:Body>
<urn:createAttachment>
<in0>webapi-5616904436472928038</in0>
<in1>15</in1>
<in2>test1.docx</in2>
<in3>test1.docx</in3>
<in4>application/vnd.openxmlformatsofficedocument.
wordprocessingml.document</in4>
<in5>
<!--type: base64Binary-->
<array>JVBERi0xLjQNJeLjz9MNCjYgMCBvYmogPDwvTGluZWFyaX==</array>
</in5>
</urn:createAttachment>
</soapenv:Body>
</soapenv:Envelope>
So I made a PHP file like this:
// Send attachment
$fileName = drupal_get_path('module', 'taleo') . '/test.txt';
$rawFile = fread(fopen($fileName, "r"), filesize($fileName));
$B64File = base64_encode($rawFile);
$params = array(
'in0' => $session,
'in1' => $candidate_id,
'in2' => 'test.txt',
'in3' => 'test.txt',
'in4' => 'text/plain',
'in5' => $B64File
);
$client_taleo->__call('createAttachment', $params);
When I do "echo $B64File" I get this: RmlsZSB1cGxvYWQgd2l0aCBEcnVwYWwgIQ==, so the file is being read correct.
But I always get this error:
ERROR: soapenv:Server.generalException-attBinDataArr is null.
Any ideas?

Answer 1

You forgot to encapsulate the base64-data in array-tags.
<array>JVBERi0xLjQNJeLjz9MNCjYgMCBvYmogPDwvTGluZWFyaX==</array>
Something like this should work:
$params = array(
'in0' => $session,
'in1' => $candidate_id,
'in2' => 'test.txt',
'in3' => 'test.txt',
'in4' => 'text/plain',
'in5' => array('array' => $B64File)
);

Answer 2

It was clear I had to do something with the array-tag, that's for sure.
The answer above deserves an "upvote", so I gave it one. But I found the correct answer myself... After a few seconds of "logic" thinking. :)
'in5' => array('array' => $B64File)