How to pass data containing special characters through curl

Question

I cannot able to post data its contain the special characters through curl ,Any solution ?

first code is my curl function ,second code is my data need to pass

$communication_data_string = 'token='.json_encode(array(
    "activityTypeId"=>12,
    "activityId"=>5,
    "userID"=> 10,
    "partyID"=>20,
    "message_area_name"=>("this is my test data with special cheractors&&!@##$%$%%*)++")
    )
); 

echo(datPostingCURL($url, $communication_data_string));

?>

this seems to not returning anything if the messageData contains the special character's

Answer 1

Try urlencode

or

How about using the entity codes...

@ = %40

& = %26