Woocommerce

I am suppose to add this code to my woocommerce , but i do not know where to put it and i tried making a plugin but it doesnt work

so please help me its a payment gateway ..

Thank you in Advance

<?php

$url = ‘http://68.169.57.64:8080/transflow_webclient/services/InvoicingService?wsdl&#8217;;
$client = new SoapClient($url,array(‘trace’=>1,’cache_wsdl’=>WSDL_CACHE_NONE,’location’=>’http://68.169.57.64:8080/transflow_webclient/services/InvoicingService.InvoicingServiceHttpSoap11Endpoint/&#8217;));

//Parameters to be sent and processed
$params = array(
‘name’=>’Frank’,
‘info’ => ‘Topup’,
‘amt’ => ‘amount’,
‘mobile’ => ‘phone number’,
‘mesg’ => ‘Please confirm the payment’,
‘expiry’=>”,
‘billprompt’=>’2’,
‘thirdpartyID’=>’Mazzuma’,
‘username’=>’your username’,
‘password’=>’your password’
);

try{
$result = $client->__call(‘postInvoice’,array($params));
}catch(SoapFault $e){
echo $e->getMessage();
}
print_r($result);
echo “

";
echo $client->__getLastRequestHeaders();
echo htmlentities($client->__getLastRequest());
echo $client->__getLastResponseHeaders();
echo htmlentities($client->__getLastResponse());
echo "<pre/>";
?>