Custom Payment Gateway

[WPCrazy]

I'm developing a custom payment gateway module. But facing an issue while writing callback script. To validate payment, I need to retrieve merchant id and merchant key which was configured in gateway setup page.

 

In module main file, I've coded this way

 

"username" => array("FriendlyName" => "Merchant ID", "Type" => "text", "Size" => "20", ),
"security" => array("FriendlyName" => "Security Key", "Type" => "text", "Size" => "20", ),

 

which can be get using $gatewayusername = $params['username']; in same file to submit form in gateway.

 

But couldn't understand how can I get those values from callback page. I need hose to verify hash (similar to 2checkout).

 

Need your help.

[drew13]

$gatewaymodule = "blablabla";
$GATEWAY = getGatewayVariables($gatewaymodule);

and then use $GATEWAY["username"] and $GATEWAY["security"] variables