My PHP code starts like this, <?php // Standard Receipt Data $amount = null2unknown($_GET["vpc_Amount"]); $vpc_message = null2unknown($_GET["vpc_Message"]); $cardType = null2unknown($_GET["vpc_Card"]); $receiptNo = null2unknown($_GET["vpc_ReceiptNo"]); $merchTxnRef = null2unknown($_GET["vpc_MerchTxnRef"]); $transactionNo = null2unknown($_GET["vpc_TransactionNo"]); $txnResponseCode = null2unknown($_GET["vpc_TxnResponseCode"]); $authorizeID = null2unknown($_GET["vpc_AuthorizeId"]); I checked the previous pages for these GET variables ie., vpc_Amount etc., but I could not trace it. I am new to PHP and HTML. Can somebody help me this by clarifying. Actually this is enclosed in a PHP page called payment_gateway.php. The user when he gives his email-id,credit-card number etc., this process is involved. Please help me out.
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null2unknown()is not a PHP function, it's a user defined function so there must be a file, included by payment_gateway.php or by a main file, which defines the above function.
The GET variables, instead are usually set by form fields:
<form method="get"> <input …
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