CURL response is not readable

I have a problem with my cURL response, when I try to call the WSDL method, I get this weird text from my browser,

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r)0Ek    Q     "Ᏹ ! 0  0    ( T $     Z  փ  UU   g      & C f
8 !  5  L t{    6 ?{jY Q  ?   K    3 D2 e    ߱Oc    @^P  $ IΠ 4A[; p \7     i5  + \歖~=    )     a L GJey F    Ɍ  v]  <  z      N    \z  . i: S5  FgkM hS   |,\ 0 E9i= +ӄ !^WҶ 7     0 w   +b ۹  [ ;   fE4_ڑ       u Q)E  ; ; JL         Ԩ 1  7[ $D   \ W   ۂU$9   

      

        
        
        
      

    

How can I solve this?

Here's my title

$headers = array(
                "Accept-Encoding: gzip, deflate",
                "Content-Type: text/xml;charset=\"UTF-8\"",
                "SOAPAction: \"http://tempuri.org/"",
                "Host: domain.com",
                "Content-length: ".strlen($xml_post_string),
                "Connection: Keep-Alive"
                ); 

      

        
        
        
      

    

and here are my options for curling

curl_setopt($soap_do, CURLOPT_URL,            $url);
curl_setopt($soap_do, CURLOPT_CONNECTTIMEOUT, 120);
curl_setopt($soap_do, CURLOPT_TIMEOUT,        120);
curl_setopt($soap_do, CURLOPT_AUTOREFERER,    true); // new
curl_setopt($soap_do, CURLOPT_MAXREDIRS,      10);   // new
curl_setopt($soap_do, CURLOPT_FOLLOWLOCATION, true); // new
curl_setopt($soap_do, CURLOPT_RETURNTRANSFER, true );
curl_setopt($soap_do, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($soap_do, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($soap_do, CURLOPT_POST,           true );            
curl_setopt($soap_do, CURLOPT_POSTFIELDS,     $xml_post_string); 
curl_setopt($soap_do, CURLOPT_VERBOSE,        TRUE); 
curl_setopt($soap_do, CURLOPT_HTTPHEADER,     $headers);