<?php

$merchant_id='ххххх';   
$signature="ххххх";
$url="https://www.liqpay.com/?do=clickNbuy";
$method='card';
$id=number_format($tpl['arr']['id']); 
$phone='+20123145121';
$amount=number_format($tpl['arr']['total']);

$xml='<request>      
      <version>1.2</version>
      <merchant_id>i9865490585</merchant_id>
      <result_url>http://mysite.com.ua/index.php?controller=pjFront&action=confirmLiqPay</result_url>
      <server_url>http://mysite.com.ua/index.php?controller=pjFront&action=confirmLiqPay</server_url>
      <order_id>82</order_id>
      <amount>$amount</amount>
      <currency>UAH</currency>
      <description>Comment</description>
      <default_phone></default_phone>
      <pay_way>card</pay_way>
</request>';	
	$xml_encoded = base64_encode($xml); 
	$lqsignature = base64_encode(sha1($signature.$xml.$signature,1));
	
echo("<form action='$url' method='POST'>
      <input type='hidden' name='operation_xml' value='$xml_encoded' />
      <input type='hidden' name='signature' value='$lqsignature' />
	<input type='submit' value='Pay'/>
	</form>");	    
?>