add order API issue

[JamesP]

Hi, having some issue with the custom fields using the addorder .

The below works when I explicitly declare the values.

'customfields' => array(base64_encode(serialize(array(29 => "9700", 30 => "testtoken", 66 => "Somewhere")))),
 

However, when trying to fill the values using an associated array

'customfields' => array(base64_encode(serialize(array( $idArray['Port'] => $clientData['serverport'], $idArray['Token'] => $clientData['servertoken'], $idArray['region|Server Region'] => $clientData['server'])))),

It doesnt work, the fields are just left blank on the order, and no error is thrown.  I've done a var_dump of the array values in the same script, and they do contain the right values (which works if a manually type them)

I don't understand why it works if I type 29 => "9700"  but not   $idArray['Port'] => $clientData['serverport']

[steven99]

customfields needs to be a string, not array.  For example, I am using the following without issue on addorder localAPI.

$postfields["customfields"] = base64_encode(serialize(array(module_function($var)=>$this->id ) ) );