php - PayPal IPN Stuck at Payment Verify -

i have been working time on this, , have yet find solution. attempting paypal ipn work, have yet successful @ doing so. first, having trouble connecting ssl, went without now. after that, seemed getting other issue. went ahead , added debug, , have found getting stuck @ verify check. know going on.

below paypal ipn, , below that, button code.

<?php include("inc/database.php"); $debug = true; $header = ''; $req = "cmd=_notify-validate"; foreach($_post $key => $value) {     $value = urlencode(stripslashes($value));     $req .= "&$key=$value"; }  $header .= "post /cgi-bin/webscr http/1.1\r\n"; $header .= "content-type: application/x-www-form-urlencoded\r\n"; $header .= "host: www.sandbox.paypal.com\r\n";  // www.sandbox.paypal.com test site $header .= "content-length: " . strlen($req) . "\r\n\r\n";  if ($debug) {     $ourfilename = "pdebug.txt";     $ourfilehandle = fopen($ourfilename, 'w') or die("can't open file");     fwrite($ourfilehandle, $req);     fclose($ourfilehandle); }  $fp = fsockopen('www.sandbox.paypal.com', 80, $errno, $errstr, 30); if(!$fp) {     // http error;     $message .= "\n http error. \n"; } else {     if ($debug)     {         $ourfilename = "debug/debug2_connected.txt";         $ourfilehandle = fopen($ourfilename, 'w') or die("can't open file");         fclose($ourfilehandle);     }     fputs($fp, $header . $req);     while(!feof($fp)) {         $res = fgets($fp, 1024);         if ($debug)         {             $ourfilename = "debug/debug3_fgets.txt";             $ourfilehandle = fopen($ourfilename, 'w') or die("can't open file");             fwrite($ourfilehandle, $res);             fclose($ourfilehandle);         }         if(strcmp($res, "verified") == 0) {             if ($debug)             {                 $ourfilename = "debug/debug4_verified.txt";                 $ourfilehandle = fopen($ourfilename, 'w') or die("can't open file");                 fclose($ourfilehandle);             }             $ids = explode("|", $_post['custom']);             $item_name = $_post["item_name"];             $item_number = $_post["item_number"];             $item_username = $ids[0];             $item_packageid = $ids[1];             $item_email = $ids[2];             $payment_status = $_post["payment_status"];             $payment_amount = $_post["mc_gross"];             $payment_currency = $_post["mc_currency"];             $txn_id = $_post["txn_id"];             $receiver_email = $_post["receiver_email"];             $payer_email = $_post["payer_email"];              $prices = array(4, 4, 4);              if(($payment_status == "completed") && ($receiver_email == "bking-facilitator@inbox.com") && ($payment_amount == $prices[$item_packageid - 1]) && ($payment_currency == "usd") && (checktxnid($txn_id) == 0)) {                 addpaypalpayment($item_name, $item_number, $item_username, $item_packageid, $item_email, $payment_status, $payment_amount, $payment_currency, $txn_id, $receiver_email, $payer_email);                 serviceadd($item_username, $item_number, $item_packageid);                 setserviceactive($item_packageid);                 sendemailwithusername("carwash", "paypal ipn", "success!");             } else {                 $mail_to = getuseremail($item_username);                 $mail_subject = "purchase unsuccessful";                 $mail_body = "something went wrong recent order. \n\nthe transaction id number :$txn_id \n\npayment status is: $payment_status \n\npayment amount is: $payment_amount \n\nif believe error on our part, please submit ticket , you.";                 mail($mail_to, $mail_subject, $mail_body);                 sendemailwithusername("carwash", "paypal ipn", "failure!!");             }         } else if(!strcmp($res, "invalid")) {             $mail_to = "bking@inbox.com";             $mail_subject = "paypal - invalid ipn";             $mail_body = "we had invalid response. \n\nthe transaction id number $txn_id \n\n username = $item_username";             mail($mail_to, $mail_subject, $mail_body);             sendemailwithusername("carwash", "paypal ipn", "failure!!!!!!!!");         }     }     fclose($fp); } ?> 

button code:

<form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post"> <input type="hidden" name="cmd" value="_xclick"> <input type="hidden" name="business" value="<?php echo $ppemail; ?>"> <input type="hidden" name="item_name" value="<?php echo $pname; ?>"> <input type="hidden" name="item_number" value="<?php echo $id; ?>"> <input type="hidden" name="amount" value="<?php echo $prices[$id - 1] . ".00"; ?>"> <input type="hidden" name="quantity" value="1"> <input type="hidden" name="no_shipping" value="1"> <input type="hidden" name="no_note" value="1"> <input type="hidden" name="currency_code" value="usd"> <input type="hidden" name="lc" value="us"> <input type="hidden" name="bn" value="pp-buynowbf"> <input type="image" src="https://www.paypal.com/en_us/i/btn/x-click-but23.gif" border="0" name="submit" alt="make payments paypal - it's fast, free , secure!"> <img alt="" border="0" src="https://www.paypal.com/en_gb/i/scr/pixel.gif" width="1" height="1"> <!-- <div style="padding-top:100px; padding-right: 40%; padding-left: 40%;">     <center><input type="submit" name="submit" class="btn" value="checkout paypal"></center> </div> --> <input type="hidden" name="return"        value="http://bvpn.biz/success.php?id=<?php echo $id; ?>&met=<?php echo $met; ?>"> <input type="hidden" name="cancel_return"        value="http://bvpn.biz/success.php?id=<?php echo $id; ?>&met=<?php echo $met; ?>&do=2"> <input type="hidden" name="rm" value="2"> <input type="hidden" name="notify_url" value="http://bvpn.biz/ipn.php"/> <input type="hidden" name="custom" value="<?php echo $_session['username'].'|'.$pid.'|'.getuseremail($_session["username"]); ?>"> </form> 

any supply great!

try if(strcmp(trim($res), "verified") == 0)...

according post here paypal sending verified response followed \r\n when http1.1 header used. trim($res) solved problem me.