如何在php中集成ccavenue时在重定向url页面中获取orderid

avenue in my website with integration kit they provided. I am able to make payment and amount is credited in my merchant account. I am using redirecturl.php for getting response

submit form to ccavenue

<form method="post" name="redirect" action="http://www.ccavenue.com/shopzone/cc_details.jsp"> 
<?php
echo "<input type=hidden name=encRequest value=$encrypted_data>";
echo "<input type=hidden name=Merchant_Id value=$merchant_id>";

?>

</form>

Redirecturl Page

error_reporting(0);
    $workingKey='xxxxxxxxxxx';      
    $encResponse=$_POST["encResponse"];         

    $rcvdString=decrypt($encResponse,$workingKey);      
    $AuthDesc="";
    $MerchantId="xxxxxxx";
    $OrderId=$_GET['link'];
    $Amount=0;
    $Checksum=0;
    $veriChecksum=false;

    $decryptValues=explode('&', $rcvdString);
    $dataSize=sizeof($decryptValues);

I want to know how to pass order id amount and other details to redirecturl page.??

You are sending an form to redirecturl page so you can just add another input element which value to send via POST ( must be inside form tags you are sending )

echo "<input type='text' name='your_form_input_name' value='' ";

And in your redirect page you access it via input name assigned before

$variable=$_POST["your_form_input_name"];