Access view exposed filter arguments in field view
You have to use object methods (functions) to get and set exposed filter inputs.

E.g. 

Use $views-&gt;get_input_filter and $views-&gt;set_input_filter($filters).  The format for filters is as follows:

$filters = array(
  'identifier' =&gt; '[your ident name]', 
  'value' =&gt; '[your value']
);