<?php
// Estonian e-payments system 1.4
// Kristo Vaher 2011 http://www.waher.net
// Licensed under LGPL http://www.gnu.org/licenses/lgpl-3.0.txt
// Published http://waher.net/archives/852
//It is recommended not to edit this file, unless really necessary
function file_get_contents_with_check($url){
if(file_exists($url)){
return file_get_contents($url);
} else {
return '';
}
}
class Payment {
private $config;
public function __construct($config=array()){
if(!isset($_POST['epay-final'])){
$this->config=$config;
$this->config['this']='http://'.$_SERVER["HTTP_HOST"].$_SERVER["REQUEST_URI"];
} else {
unset($_POST['epay-final']);
unset($_POST['epay-submitbutton']);
if(isset($_POST['epay-t'])){
$this->config=$config[$_POST['epay-t']];
$this->config['this']='http://'.$_SERVER["HTTP_HOST"].$_SERVER["REQUEST_URI"];
}
}
}
public function returnForm(){
$root='http://'.$_SERVER["HTTP_HOST"].$_SERVER["REQUEST_URI"];
$return='';
$return.='<form '.((isset($this->config['form-name']))?'name="'.$this->config['form-name'].'"':'name="epay-form"').' '.((isset($this->config['form-id']))?'id="'.$this->config['form-id'].'"':'id="epay-form"').' action="'.$this->config['gateway-url'].'?epay-t='.$this->config['payment-type'].'" method="post">';
$return.='<input type="hidden" name="order" value="'.$this->config['order'].'"/>';
$return.='<input type="hidden" name="amount" value="'.$this->config['amount'].'"/>';
$return.='<input type="hidden" name="return" value="'.$this->config['return-url'].'"/>';
if(isset($this->config['message'])){
$return.='<input type="hidden" name="message" value="'.$this->config['message'].'"/>';
}
if(isset($this->config['currency'])){
$return.='<input type="hidden" name="currency" value="'.$this->config['currency'].'"/>';
}
if(isset($this->config['language'])){
$return.='<input type="hidden" name="language" value="'.$this->config['language'].'"/>';
}
if(isset($this->config['submit-button'])){
$return.=$this->config['submit-button'];
} else {
$return.='<input type="submit" name="epay-submitbutton" value="Pay"/>';
}
$return.='</form>';
return $return;
}
public function validateReturn($data){
if(empty($data)){
return false;
} else if(isset($data['epay-hash'])){
ksort($data);
$hash=$this->config['hash'];
foreach($data as $key=>$d){
if($key!='epay-hash' && $key!='epay-submitbutton' && $key!='epay-final'){
$hash.='&'.$key.'='.$d;
}
}
if($data['epay-hash']==md5($hash)){
return true;
} else {
return false;
}
} else {
return false;
}
}
public function submitForm(){
switch ($this->config['payment']) {
case 'swed-est':
echo '<form name="epay-form" method="post" action="'.$this->config['settings']['service-url'].'">';
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
echo '<input type="hidden" name="VK_SERVICE" value="1001"/>'; //service number
} else {
echo '<input type="hidden" name="VK_SERVICE" value="1002"/>'; //service number
}
echo '<input type="hidden" name="VK_VERSION" value="008"/>'; //crypto algorithm used
echo '<input type="hidden" name="VK_SND_ID" value="'.$this->config['settings']['VK_SND_ID'].'"/>'; //service provider id
echo '<input type="hidden" name="VK_STAMP" value="'.$this->config['order']['order-code'].'"/>'; //unique order code in e-shop to eliminate duplicate transactions
$amount=number_format($this->config['order']['amount'], 2, '.', '');
echo '<input type="hidden" name="VK_AMOUNT" value="'.$amount.'"/>'; //amount to be transferred
echo '<input type="hidden" name="VK_CURR" value="'.strtoupper($this->config['order']['currency']).'"/>'; //currency
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
echo '<input type="hidden" name="VK_ACC" value="'.$this->config['settings']['VK_ACC'].'"/>'; //client account number
echo '<input type="hidden" name="VK_NAME" value="'.$this->config['settings']['VK_NAME'].'"/>'; //client name
}
$reference=@$this->referenceNumber($this->config['order']['order-code']);
echo '<input type="hidden" name="VK_REF" value="'.$reference.'"/>'; //'standard reference number'?
echo '<input type="hidden" name="VK_MSG" value="'.$this->config['order']['message'].'"/>'; //custom message
echo '<input type="hidden" name="VK_ENCODING" value="UTF-8"/>'; //UTF-8 or ISO-8859-1 (default)
if(isset($this->config['settings']['client-private-key-password'])){
$key=openssl_pkey_get_private($this->config['settings']['client-private-key'],$this->config['settings']['private-key-password']);
} else {
$key=openssl_pkey_get_private($this->config['settings']['client-private-key'],'');
}
$mac='';
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
$mac.=str_pad(mb_strlen('1001','UTF-8'),3,'0',STR_PAD_LEFT).'1001';
} else {
$mac.=str_pad(mb_strlen('1002','UTF-8'),3,'0',STR_PAD_LEFT).'1002';
}
$mac.=str_pad(mb_strlen('008','UTF-8'),3,'0',STR_PAD_LEFT).'008';
$mac.=str_pad(mb_strlen($this->config['settings']['VK_SND_ID'],'UTF-8'),3,'0',STR_PAD_LEFT).$this->config['settings']['VK_SND_ID'];
$mac.=str_pad(mb_strlen($this->config['order']['order-code'],'UTF-8'),3,'0',STR_PAD_LEFT).$this->config['order']['order-code'];
$mac.=str_pad(mb_strlen($amount,'UTF-8'),3,'0',STR_PAD_LEFT).$amount;
$mac.=str_pad(mb_strlen($this->config['order']['currency'],'UTF-8'),3,'0',STR_PAD_LEFT).strtoupper($this->config['order']['currency']);
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
$mac.=str_pad(mb_strlen($this->config['settings']['VK_ACC'],'UTF-8'),3,'0',STR_PAD_LEFT).$this->config['settings']['VK_ACC'];
$mac.=str_pad(mb_strlen($this->config['settings']['VK_NAME'],'UTF-8'),3,'0',STR_PAD_LEFT).$this->config['settings']['VK_NAME'];
}
$mac.=str_pad(mb_strlen($reference,'UTF-8'),3,'0',STR_PAD_LEFT).$reference;
$mac.=str_pad(mb_strlen($this->config['order']['message'],'UTF-8'),3,'0',STR_PAD_LEFT).$this->config['order']['message'];
openssl_sign($mac,$signature,$key);
$mac = base64_encode($signature);
echo '<input type="hidden" name="VK_MAC" value="'.$mac.'"/>'; //security hash
$returnurl=$this->config['this'].'&epay-rt=return&epay-r='.urlencode($this->config['settings']['return-url']);
echo '<input type="hidden" name="VK_RETURN" value="'.$returnurl.'"/>'; //url to be returned to, if successful
if(strlen($returnurl)>150){
echo $returnurl.'<br/>final return URL is too long ('.strlen($returnurl).'>150 symbols) for Swedbank e-payment<br/>shorten return URL or gateway location URL to fix this';
die();
}
$this->config['settings']['language']=strtolower($this->config['settings']['language']);
if($this->config['settings']['language']=='estonia' || $this->config['settings']['language']=='estonian' || $this->config['settings']['language']=='et' || $this->config['settings']['language']=='est'){
$this->config['settings']['language']='est';
} else if($this->config['settings']['language']=='english' || $this->config['settings']['language']=='en' || $this->config['settings']['language']=='eng'){
$this->config['settings']['language']='eng';
} else if($this->config['settings']['language']=='russian' || $this->config['settings']['language']=='ru' || $this->config['settings']['language']=='rus'){
$this->config['settings']['language']='rus';
} else {
$this->config['settings']['language']='eng';
}
echo '<input type="hidden" name="VK_LANG" value="'.strtoupper($this->config['settings']['language']).'"/>'; //preferred langauge
echo '<input type="hidden" name="VK_AUTO" value="Y"/>'; //whether sent automatically
echo '<input type="submit" name="epay-submitbutton" id="epay-submitbutton" value="click here if you are not being redirected"/>';
echo '</form>';
break;
case 'seb-est':
echo '<form name="epay-form" method="post" action="'.$this->config['settings']['service-url'].'">';
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
echo '<input type="hidden" name="VK_SERVICE" value="1001"/>'; //service number
} else {
echo '<input type="hidden" name="VK_SERVICE" value="1002"/>'; //service number
}
echo '<input type="hidden" name="VK_VERSION" value="008"/>'; //crypto algorithm used
echo '<input type="hidden" name="VK_SND_ID" value="'.$this->config['settings']['VK_SND_ID'].'"/>'; //service provider id
echo '<input type="hidden" name="VK_STAMP" value="'.$this->config['order']['order-code'].'"/>'; //unique order code in e-shop to eliminate duplicate transactions
$amount=number_format($this->config['order']['amount'], 2, '.', '');
echo '<input type="hidden" name="VK_AMOUNT" value="'.$amount.'"/>'; //amount to be transferred
echo '<input type="hidden" name="VK_CURR" value="'.strtoupper($this->config['order']['currency']).'"/>'; //currency
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
echo '<input type="hidden" name="VK_ACC" value="'.$this->config['settings']['VK_ACC'].'"/>'; //client account number
echo '<input type="hidden" name="VK_NAME" value="'.$this->config['settings']['VK_NAME'].'"/>'; //client name
}
$reference=@$this->referenceNumber($this->config['order']['order-code']);
echo '<input type="hidden" name="VK_REF" value="'.$reference.'"/>'; //'standard reference number'?
echo '<input type="hidden" name="VK_MSG" value="'.$this->config['order']['message'].'"/>'; //custom message
echo '<input type="hidden" name="VK_CHARSET" value="UTF-8"/>'; //UTF-8 or ISO-8859-1 (default)
if(isset($this->config['settings']['client-private-key-password'])){
$key=openssl_pkey_get_private($this->config['settings']['client-private-key'],$this->config['settings']['private-key-password']);
} else {
$key=openssl_pkey_get_private($this->config['settings']['client-private-key'],'');
}
$mac='';
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
$mac.=str_pad(strlen('1001'),3,'0',STR_PAD_LEFT).'1001';
} else {
$mac.=str_pad(strlen('1002'),3,'0',STR_PAD_LEFT).'1002';
}
$mac.=str_pad(strlen('008'),3,'0',STR_PAD_LEFT).'008';
$mac.=str_pad(strlen($this->config['settings']['VK_SND_ID']),3,'0',STR_PAD_LEFT).$this->config['settings']['VK_SND_ID'];
$mac.=str_pad(strlen($this->config['order']['order-code']),3,'0',STR_PAD_LEFT).$this->config['order']['order-code'];
$mac.=str_pad(strlen($amount),3,'0',STR_PAD_LEFT).$amount;
$mac.=str_pad(strlen($this->config['order']['currency']),3,'0',STR_PAD_LEFT).strtoupper($this->config['order']['currency']);
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
$mac.=str_pad(strlen($this->config['settings']['VK_ACC']),3,'0',STR_PAD_LEFT).$this->config['settings']['VK_ACC'];
$mac.=str_pad(strlen($this->config['settings']['VK_NAME']),3,'0',STR_PAD_LEFT).$this->config['settings']['VK_NAME'];
}
$mac.=str_pad(strlen($reference),3,'0',STR_PAD_LEFT).$reference;
$mac.=str_pad(strlen($this->config['order']['message']),3,'0',STR_PAD_LEFT).$this->config['order']['message'];
openssl_sign($mac,$signature,$key);
$mac = base64_encode($signature);
echo '<input type="hidden" name="VK_MAC" value="'.$mac.'"/>'; //security hash
echo '<input type="hidden" name="VK_RETURN" value="'.$this->config['this'].'&epay-rt=return&epay-r='.urlencode($this->config['settings']['return-url']).'"/>'; //url to be returned to, if successful
echo '<input type="hidden" name="VK_CANCEL" value="'.$this->config['this'].'&epay-rt=cancel&epay-r='.urlencode($this->config['settings']['return-url']).'"/>'; //url to be returned to, if rejected
$this->config['settings']['language']=strtolower($this->config['settings']['language']);
if($this->config['settings']['language']=='estonia' || $this->config['settings']['language']=='estonian' || $this->config['settings']['language']=='et' || $this->config['settings']['language']=='est'){
$this->config['settings']['language']='est';
} else if($this->config['settings']['language']=='english' || $this->config['settings']['language']=='en' || $this->config['settings']['language']=='eng'){
$this->config['settings']['language']='eng';
} else if($this->config['settings']['language']=='russian' || $this->config['settings']['language']=='ru' || $this->config['settings']['language']=='rus'){
$this->config['settings']['language']='rus';
} else {
$this->config['settings']['language']='eng';
}
echo '<input type="hidden" name="VK_LANG" value="'.strtoupper($this->config['settings']['language']).'"/>'; //preferred langauge
echo '<input type="hidden" name="VK_AUTO" value="Y"/>'; //whether sent automatically
echo '<input type="submit" name="epay-submitbutton" id="epay-submitbutton" value="click here if you are not being redirected"/>';
echo '</form>';
break;
case 'sampo-est':
echo '<form name="epay-form" method="post" action="'.$this->config['settings']['service-url'].'">';
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
echo '<input type="hidden" name="VK_SERVICE" value="1001"/>'; //service number
} else {
echo '<input type="hidden" name="VK_SERVICE" value="1002"/>'; //service number
}
echo '<input type="hidden" name="VK_VERSION" value="008"/>'; //crypto algorithm used
echo '<input type="hidden" name="VK_SND_ID" value="'.$this->config['settings']['VK_SND_ID'].'"/>'; //service provider id
echo '<input type="hidden" name="VK_STAMP" value="'.$this->config['order']['order-code'].'"/>'; //unique order code in e-shop to eliminate duplicate transactions
$amount=number_format($this->config['order']['amount'], 2, '.', '');
echo '<input type="hidden" name="VK_AMOUNT" value="'.$amount.'"/>'; //amount to be transferred
echo '<input type="hidden" name="VK_CURR" value="'.strtoupper($this->config['order']['currency']).'"/>'; //currency
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
echo '<input type="hidden" name="VK_ACC" value="'.$this->config['settings']['VK_ACC'].'"/>'; //client account number
echo '<input type="hidden" name="VK_NAME" value="'.$this->config['settings']['VK_NAME'].'"/>'; //client name
}
$reference=@$this->referenceNumber($this->config['order']['order-code']);
echo '<input type="hidden" name="VK_REF" value="'.$reference.'"/>'; //'standard reference number'?
echo '<input type="hidden" name="VK_MSG" value="'.$this->config['order']['message'].'"/>'; //custom message
if(isset($this->config['settings']['client-private-key-password'])){
$key=openssl_pkey_get_private($this->config['settings']['client-private-key'],$this->config['settings']['private-key-password']);
} else {
$key=openssl_pkey_get_private($this->config['settings']['client-private-key'],'');
}
$mac='';
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
$mac.=str_pad(strlen('1001'),3,'0',STR_PAD_LEFT).'1001';
} else {
$mac.=str_pad(strlen('1002'),3,'0',STR_PAD_LEFT).'1002';
}
$mac.=str_pad(strlen('008'),3,'0',STR_PAD_LEFT).'008';
$mac.=str_pad(strlen($this->config['settings']['VK_SND_ID']),3,'0',STR_PAD_LEFT).$this->config['settings']['VK_SND_ID'];
$mac.=str_pad(strlen($this->config['order']['order-code']),3,'0',STR_PAD_LEFT).$this->config['order']['order-code'];
$mac.=str_pad(strlen($amount),3,'0',STR_PAD_LEFT).$amount;
$mac.=str_pad(strlen($this->config['order']['currency']),3,'0',STR_PAD_LEFT).strtoupper($this->config['order']['currency']);
if(isset($this->config['settings']['VK_ACC']) || isset($this->config['settings']['VK_NAME'])){
$mac.=str_pad(strlen($this->config['settings']['VK_ACC']),3,'0',STR_PAD_LEFT).$this->config['settings']['VK_ACC'];
$mac.=str_pad(strlen($this->config['settings']['VK_NAME']),3,'0',STR_PAD_LEFT).$this->config['settings']['VK_NAME'];
}
$mac.=str_pad(strlen($reference),3,'0',STR_PAD_LEFT).$reference;
$mac.=str_pad(strlen($this->config['order']['message']),3,'0',STR_PAD_LEFT).$this->config['order']['message'];
openssl_sign($mac,$signature,$key);
$mac = base64_encode($signature);
echo '<input type="hidden" name="VK_MAC" value="'.$mac.'"/>'; //security hash
echo '<input type="hidden" name="VK_RETURN" value="'.$this->config['this'].'&epay-rt=return&epay-r='.urlencode($this->config['settings']['return-url']).'"/>'; //url to be returned to, if successful
$this->config['settings']['language']=strtolower($this->config['settings']['language']);
if($this->config['settings']['language']=='estonia' || $this->config['settings']['language']=='estonian' || $this->config['settings']['language']=='et' || $this->config['settings']['language']=='est'){
$this->config['settings']['language']='est';
} else if($this->config['settings']['language']=='english' || $this->config['settings']['language']=='en' || $this->config['settings']['language']=='eng'){
$this->config['settings']['language']='eng';
} else if($this->config['settings']['language']=='russian' || $this->config['settings']['language']=='ru' || $this->config['settings']['language']=='rus'){
$this->config['settings']['language']='rus';
} else {
$this->config['settings']['language']='eng';
}
echo '<input type="hidden" name="VK_LANG" value="'.strtoupper($this->config['settings']['language']).'"/>'; //preferred langauge
echo '<input type="hidden" name="VK_AUTO" value="Y"/>'; //whether sent automatically
echo '<input type="submit" name="epay-submitbutton" id="epay-submitbutton" value="click here if you are not being redirected"/>';
echo '</form>';
break;
case 'nordea-est':
echo '<form name="epay-form" method="post" action="'.$this->config['settings']['service-url'].'">';
echo '<input type="hidden" name="SOLOPMT_VERSION" value="0003"/>'; //presentation form of payment data, either 0002 or 0003, latter is recommended
echo '<input type="hidden" name="SOLOPMT_STAMP" value="'.$this->config['order']['order-code'].'"/>'; //unique order code in e-shop to eliminate duplicate transactions
echo '<input type="hidden" name="SOLOPMT_RCV_ID" value="'.$this->config['settings']['RCV_ID'].'"/>'; //service provider ID
if(isset($this->config['settings']['RCV_ACCOUNT']) || isset($this->config['settings']['RCV_NAME'])){
echo '<input type="hidden" name="SOLOPMT_RCV_ACCOUNT" value="'.$this->config['settings']['SOLOPMT_RCV_ACCOUNT'].'"/>'; //alternative account, must be registered in Nordea
echo '<input type="hidden" name="SOLOPMT_RCV_NAME" value="'.$this->config['settings']['SOLOPMT_RCV_NAME'].'"/>'; //payment receiver name, if not default
}
$this->config['settings']['language']=strtolower($this->config['settings']['language']);
if($this->config['settings']['language']=='estonia' || $this->config['settings']['language']=='estonian' || $this->config['settings']['language']=='et' || $this->config['settings']['language']=='est'){
$this->config['settings']['language']=4;
} else if($this->config['settings']['language']=='english' || $this->config['settings']['language']=='en' || $this->config['settings']['language']=='eng'){
$this->config['settings']['language']=3;
} else if($this->config['settings']['language']=='latvian' || $this->config['settings']['language']=='lv' || $this->config['settings']['language']=='lat'){
$this->config['settings']['language']=6;
} else if($this->config['settings']['language']=='lithuanian' || $this->config['settings']['language']=='lt' || $this->config['settings']['language']=='lit'){
$this->config['settings']['language']=7;
} else {
$this->config['settings']['language']=3;
}
echo '<input type="hidden" name="SOLOPMT_LANGUAGE" value="'.$this->config['settings']['language'].'"/>';
$amount=number_format($this->config['order']['amount'], 2, '.', '');
echo '<input type="hidden" name="SOLOPMT_AMOUNT" value="'.$amount.'"/>'; //amount to be transferred
$reference=@$this->referenceNumber($this->config['order']['order-code']);
echo '<input type="hidden" name="SOLOPMT_REF" value="'.$reference.'"/>'; //'standard reference number'?
echo '<input type="hidden" name="SOLOPMT_DATE" value="EXPRESS"/>'; //EXPRESS or DD.MM.YYYY
echo '<input type="hidden" name="SOLOPMT_MSG" value="'.$this->config['order']['message'].'"/>'; //custom message
echo '<input type="hidden" name="SOLOPMT_RETURN" value="'.$this->config['this'].'&epay-rt=return&epay-r='.urlencode($this->config['settings']['return-url']).'"/>'; //url to be returned to, if successful
echo '<input type="hidden" name="SOLOPMT_REJECT" value="'.$this->config['this'].'&epay-rt=reject&epay-r='.urlencode($this->config['settings']['return-url']).'"/>'; //url to be returned to, if rejected
echo '<input type="hidden" name="SOLOPMT_CANCEL" value="'.$this->config['this'].'&epay-rt=cancel&epay-r='.urlencode($this->config['settings']['return-url']).'"/>'; //url to be returned to, if canceled
$mac=strtoupper(md5('0003&'.$this->config['order']['order-code'].'&'.$this->config['settings']['RCV_ID'].'&'.$amount.'&'.$reference.'&EXPRESS&'.$this->config['order']['currency'].'&'.$this->config['settings']['private-key'].'&'));
echo '<input type="hidden" name="SOLOPMT_MAC" value="'.$mac.'"/>'; //security hash
echo '<input type="hidden" name="SOLOPMT_CONFIRM" value="YES"/>'; //if value is YES, the service provider receives information on the payment processing through all return links
echo '<input type="hidden" name="SOLOPMT_KEYVERS" value="0001"/>'; //MAC key version
echo '<input type="hidden" name="SOLOPMT_CUR" value="'.strtoupper($this->config['order']['currency']).'"/>'; //currency
echo '<input type="submit" name="epay-submitbutton" id="epay-submitbutton" value="click here if you are not being redirected"/>';
echo '</form>';
break;
case 'nordea-fin':
echo '<form name="epay-form" method="post" action="'.$this->config['settings']['service-url'].'">';
echo '<input type="hidden" name="SOLOPMT_VERSION" value="0003"/>'; //presentation form of payment data, either 0002 or 0003, latter is recommended
echo '<input type="hidden" name="SOLOPMT_STAMP" value="'.$this->config['order']['order-code'].'"/>'; //unique order code in e-shop to eliminate duplicate transactions
echo '<input type="hidden" name="SOLOPMT_RCV_ID" value="'.$this->config['settings']['RCV_ID'].'"/>'; //service provider ID
if(isset($this->config['settings']['RCV_ACCOUNT']) || isset($this->config['settings']['RCV_NAME'])){
echo '<input type="hidden" name="SOLOPMT_RCV_ACCOUNT" value="'.$this->config['settings']['SOLOPMT_RCV_ACCOUNT'].'"/>'; //alternative account, must be registered in Nordea
echo '<input type="hidden" name="SOLOPMT_RCV_NAME" value="'.$this->config['settings']['SOLOPMT_RCV_NAME'].'"/>'; //payment receiver name, if not default
}
$this->config['settings']['language']=strtolower($this->config['settings']['language']);
if($this->config['settings']['language']=='finnish' || $this->config['settings']['language']=='finnish' || $this->config['settings']['language']=='fi' || $this->config['settings']['language']=='fin'){
$this->config['settings']['language']=1;
} else {
$this->config['settings']['language']=1;
}
echo '<input type="hidden" name="SOLOPMT_LANGUAGE" value="'.$this->config['settings']['language'].'"/>';
$amount=number_format($this->config['order']['amount'], 2, '.', '');
echo '<input type="hidden" name="SOLOPMT_AMOUNT" value="'.$amount.'"/>'; //amount to be transferred
$reference=@$this->referenceNumber($this->config['order']['order-code']);
echo '<input type="hidden" name="SOLOPMT_REF" value="'.$reference.'"/>'; //'standard reference number'?
echo '<input type="hidden" name="SOLOPMT_DATE" value="EXPRESS"/>'; //EXPRESS or DD.MM.YYYY
echo '<input type="hidden" name="SOLOPMT_MSG" value="'.$this->config['order']['message'].'"/>'; //custom message
echo '<input type="hidden" name="SOLOPMT_RETURN" value="'.$this->config['this'].'&epay-rt=return&epay-r='.urlencode($this->config['settings']['return-url']).'"/>'; //url to be returned to, if successful
echo '<input type="hidden" name="SOLOPMT_REJECT" value="'.$this->config['this'].'&epay-rt=reject&epay-r='.urlencode($this->config['settings']['return-url']).'"/>'; //url to be returned to, if rejected
echo '<input type="hidden" name="SOLOPMT_CANCEL" value="'.$this->config['this'].'&epay-rt=cancel&epay-r='.urlencode($this->config['settings']['return-url']).'"/>'; //url to be returned to, if canceled
$mac=strtoupper(md5('0003&'.$this->config['order']['order-code'].'&'.$this->config['settings']['RCV_ID'].'&'.$amount.'&'.$reference.'&EXPRESS&'.$this->config['order']['currency'].'&'.$this->config['settings']['private-key'].'&'));
echo '<input type="hidden" name="SOLOPMT_MAC" value="'.$mac.'"/>'; //security hash
echo '<input type="hidden" name="SOLOPMT_CONFIRM" value="YES"/>'; //if value is YES, the service provider receives information on the payment processing through all return links
echo '<input type="hidden" name="SOLOPMT_KEYVERS" value="0001"/>'; //MAC key version
echo '<input type="hidden" name="SOLOPMT_CUR" value="'.strtoupper($this->config['order']['currency']).'"/>'; //currency
echo '<input type="submit" name="epay-submitbutton" id="epay-submitbutton" value="click here if you are not being redirected"/>';
echo '</form>';
break;
break;
case 'sampo-fin':
echo '<form name="epay-form" method="post" action="'.$this->config['settings']['service-url'].'">';
echo '<input type="hidden" name="KNRO" value="'.$this->config['settings']['KNRO'].'"/>'; //
$amount=number_format($this->config['order']['amount'], 2, '.', '');
echo '<input type="hidden" name="SUMMA" value="'.$amount.'"/>'; //
echo '<input type="hidden" name="VIITE" value="'.$this->config['order']['order-code'].'"/>'; //
echo '<input type="hidden" name="VALUUTTA" value="'.strtoupper($this->config['order']['currency']).'"/>'; //currency
echo '<input type="hidden" name="VERSIO" value="3"/>'; //
echo '<input type="hidden" name="OKURL" value="'.$this->config['this'].'&epay-rt=return&epay-r='.urlencode($this->config['settings']['return-url']).'"/>'; //if payment a success url
echo '<input type="hidden" name="VIRHEURL" value="'.$this->config['settings']['cancel-url'].'"/>'; //if payment failed url
$mac=md5($this->config['settings']['private-key'].str_replace('.',',',$amount).$this->config['order']['order-code'].$this->config['settings']['KNRO'].'3'.strtoupper($this->config['order']['currency']).$this->config['this'].'&epay-rt=return&epay-r='.urlencode($this->config['settings']['return-url']).$this->config['settings']['cancel-url']);
echo '<input type="hidden" name="TARKISTE" value="'.$mac.'"/>'; //
echo '<input type="submit" name="epay-submitbutton" id="epay-submitbutton" value="click here if you are not being redirected"/>';
echo '</form>';
break;
case 'estcard-est':
echo '<form name="epay-form" method="get" action="'.$this->config['settings']['service-url'].'">';
echo '<input type="hidden" name="action" value="gaf"/>'; //
echo '<input type="hidden" name="ver" value="002"/>'; //
echo '<input type="hidden" name="id" value="'.$this->config['settings']['SERVICE'].'"/>'; //
while (strlen($this->config['settings']['SERVICE']) < 10){
$this->config['settings']['SERVICE'] = $this->config['settings']['SERVICE'].' ';
}
while(strlen($this->config['order']['order-code']) < 12){
$this->config['order']['order-code'] = '0'.$this->config['order']['order-code'];
}
echo '<input type="hidden" name="ecuno" value="'.$this->config['order']['order-code'].'"/>'; //
$price=number_format($this->config['order']['amount'], 2, '.', '');
$price = $price*100;
while (strlen($price) < 12){
$price = '0'.$price;
}
echo '<input type="hidden" name="eamount" value="'.$price.'"/>'; //
echo '<input type="hidden" name="cur" value="'.strtoupper($this->config['order']['currency']).'"/>'; //
$date=date('YmdHis');
echo '<input type="hidden" name="datetime" value="'.$date.'"/>'; //
$mac='002'.$this->config['settings']['SERVICE'].$this->config['order']['order-code'].$price.strtoupper($this->config['order']['currency']).$date;
$private_key = openssl_pkey_get_private($this->config['settings']['client-private-key']);
openssl_sign($mac, $signature, $private_key, OPENSSL_ALGO_SHA1);
openssl_free_key($private_key);
$mac=bin2hex($signature);
echo '<input type="hidden" name="mac" value="'.$mac.'"/>'; //
$this->config['settings']['language']=strtolower($this->config['settings']['language']);
if($this->config['settings']['language']=='estonia' || $this->config['settings']['language']=='estonian' || $this->config['settings']['language']=='et' || $this->config['settings']['language']=='est'){
$this->config['settings']['language']='et';
} else if($this->config['settings']['language']=='english' || $this->config['settings']['language']=='en' || $this->config['settings']['language']=='eng'){
$this->config['settings']['language']='en';
} else if($this->config['settings']['language']=='russian' || $this->config['settings']['language']=='ru' || $this->config['settings']['language']=='rus'){
$this->config['settings']['language']='ru';
} else {
$this->config['settings']['language']='en';
}
echo '<input type="hidden" name="lang" value="'.$this->config['settings']['language'].'"/>'; //
echo '<input type="submit" name="epay-submitbutton" id="epay-submitbutton" value="click here if you are not being redirected"/>';
echo '</form>';
break;
}
}
public function checkPayment($data){
$return=array();
switch ($this->config['payment']) {
case 'swed-est':
if($data['VK_SERVICE']=='1101'){
$mac='';
$mac.=str_pad(mb_strlen($data['VK_SERVICE'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_SERVICE'];
$mac.=str_pad(mb_strlen($data['VK_VERSION'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_VERSION'];
$mac.=str_pad(mb_strlen($data['VK_SND_ID'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_SND_ID'];
$mac.=str_pad(mb_strlen($data['VK_REC_ID'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_REC_ID'];
$mac.=str_pad(mb_strlen($data['VK_STAMP'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_STAMP'];
$mac.=str_pad(mb_strlen($data['VK_T_NO'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_T_NO'];
$mac.=str_pad(mb_strlen($data['VK_AMOUNT'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_AMOUNT'];
$mac.=str_pad(mb_strlen($data['VK_CURR'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_CURR'];
$mac.=str_pad(mb_strlen($data['VK_REC_ACC'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_REC_ACC'];
$mac.=str_pad(mb_strlen($data['VK_REC_NAME'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_REC_NAME'];
$mac.=str_pad(mb_strlen($data['VK_SND_ACC'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_SND_ACC'];
$mac.=str_pad(mb_strlen($data['VK_SND_NAME'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_SND_NAME'];
$mac.=str_pad(mb_strlen($data['VK_REF'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_REF'];
$mac.=str_pad(mb_strlen($data['VK_MSG'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_MSG'];
$mac.=str_pad(mb_strlen($data['VK_T_DATE'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_T_DATE'];
$key=openssl_pkey_get_public($this->config['settings']['bank-public-key']);
if(openssl_verify($mac,base64_decode($data['VK_MAC']),$key)){
$return['result']='success';
$return['payment-code']=$data['VK_T_NO'];
$return['reference-number']=$data['VK_REF'];
$return['order-code']=$data['VK_STAMP'];
$return['sender-name']=$data['VK_SND_NAME'];
$return['sender-account']=$data['VK_SND_ACC'];
} else {
$return['result']='failed';
$return['message']='security hash incorrect - '.openssl_error_string();
}
openssl_free_key($key);
}
if($data['VK_SERVICE']=='1901'){
$mac='';
$mac.=str_pad(mb_strlen($data['VK_SERVICE'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_SERVICE'];
$mac.=str_pad(mb_strlen($data['VK_VERSION'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_VERSION'];
$mac.=str_pad(mb_strlen($data['VK_SND_ID'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_SND_ID'];
$mac.=str_pad(mb_strlen($data['VK_REC_ID'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_REC_ID'];
$mac.=str_pad(mb_strlen($data['VK_STAMP'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_STAMP'];
$mac.=str_pad(mb_strlen($data['VK_REF'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_REF'];
$mac.=str_pad(mb_strlen($data['VK_MSG'],'UTF-8'),3,'0',STR_PAD_LEFT).$data['VK_MSG'];
$key=openssl_pkey_get_public($this->config['settings']['bank-public-key']);
if(openssl_verify($mac,base64_decode($data['VK_MAC']),$key)){
$return['result']='failed';
$return['reference-number']=$data['VK_REF'];
$return['order-code']=$data['VK_STAMP'];
$return['message']='payment canceled';
} else {
$return['result']='failed';
$return['message']='security hash incorrect - '.openssl_error_string();
}
openssl_free_key($key);
}
break;
case 'seb-est':
if($data['VK_SERVICE']=='1101'){
$mac='';
$mac.=str_pad(strlen($data['VK_SERVICE']),3,'0',STR_PAD_LEFT).$data['VK_SERVICE'];
$mac.=str_pad(strlen($data['VK_VERSION']),3,'0',STR_PAD_LEFT).$data['VK_VERSION'];
$mac.=str_pad(strlen($data['VK_SND_ID']),3,'0',STR_PAD_LEFT).$data['VK_SND_ID'];
$mac.=str_pad(strlen($data['VK_REC_ID']),3,'0',STR_PAD_LEFT).$data['VK_REC_ID'];
$mac.=str_pad(strlen($data['VK_STAMP']),3,'0',STR_PAD_LEFT).$data['VK_STAMP'];
$mac.=str_pad(strlen($data['VK_T_NO']),3,'0',STR_PAD_LEFT).$data['VK_T_NO'];
$mac.=str_pad(strlen($data['VK_AMOUNT']),3,'0',STR_PAD_LEFT).$data['VK_AMOUNT'];
$mac.=str_pad(strlen($data['VK_CURR']),3,'0',STR_PAD_LEFT).$data['VK_CURR'];
$mac.=str_pad(strlen($data['VK_REC_ACC']),3,'0',STR_PAD_LEFT).$data['VK_REC_ACC'];
$mac.=str_pad(strlen($data['VK_REC_NAME']),3,'0',STR_PAD_LEFT).$data['VK_REC_NAME'];
$mac.=str_pad(strlen($data['VK_SND_ACC']),3,'0',STR_PAD_LEFT).$data['VK_SND_ACC'];
$mac.=str_pad(strlen($data['VK_SND_NAME']),3,'0',STR_PAD_LEFT).$data['VK_SND_NAME'];
$mac.=str_pad(strlen($data['VK_REF']),3,'0',STR_PAD_LEFT).$data['VK_REF'];
$mac.=str_pad(strlen($data['VK_MSG']),3,'0',STR_PAD_LEFT).$data['VK_MSG'];
$mac.=str_pad(strlen($data['VK_T_DATE']),3,'0',STR_PAD_LEFT).$data['VK_T_DATE'];
$key=openssl_pkey_get_public($this->config['settings']['bank-public-key']);
if(openssl_verify($mac,base64_decode($data['VK_MAC']),$key)){
$return['result']='success';
$return['payment-code']=$data['VK_T_NO'];
$return['reference-number']=$data['VK_REF'];
$return['order-code']=$data['VK_STAMP'];
$return['sender-name']=$data['VK_SND_NAME'];
$return['sender-account']=$data['VK_SND_ACC'];
} else {
$return['result']='failed';
$return['message']='security hash incorrect - '.openssl_error_string();
}
openssl_free_key($key);
}
if($data['VK_SERVICE']=='1901'){
$mac='';
$mac.=str_pad(strlen($data['VK_SERVICE']),3,'0',STR_PAD_LEFT).$data['VK_SERVICE'];
$mac.=str_pad(strlen($data['VK_VERSION']),3,'0',STR_PAD_LEFT).$data['VK_VERSION'];
$mac.=str_pad(strlen($data['VK_SND_ID']),3,'0',STR_PAD_LEFT).$data['VK_SND_ID'];
$mac.=str_pad(strlen($data['VK_REC_ID']),3,'0',STR_PAD_LEFT).$data['VK_REC_ID'];
$mac.=str_pad(strlen($data['VK_STAMP']),3,'0',STR_PAD_LEFT).$data['VK_STAMP'];
$mac.=str_pad(strlen($data['VK_REF']),3,'0',STR_PAD_LEFT).$data['VK_REF'];
$mac.=str_pad(strlen($data['VK_MSG']),3,'0',STR_PAD_LEFT).$data['VK_MSG'];
$key=openssl_pkey_get_public($this->config['settings']['bank-public-key']);
if(openssl_verify($mac,base64_decode($data['VK_MAC']),$key)){
$return['result']='failed';
$return['reference-number']=$data['VK_REF'];
$return['order-code']=$data['VK_STAMP'];
$return['message']='payment canceled';
} else {
$return['result']='failed';
$return['message']='security hash incorrect - '.openssl_error_string();
}
openssl_free_key($key);
}
if($data['VK_SERVICE']=='1902'){
$mac='';
$mac.=str_pad(strlen($data['VK_SERVICE']),3,'0',STR_PAD_LEFT).$data['VK_SERVICE'];
$mac.=str_pad(strlen($data['VK_VERSION']),3,'0',STR_PAD_LEFT).$data['VK_VERSION'];
$mac.=str_pad(strlen($data['VK_SND_ID']),3,'0',STR_PAD_LEFT).$data['VK_SND_ID'];
$mac.=str_pad(strlen($data['VK_REC_ID']),3,'0',STR_PAD_LEFT).$data['VK_REC_ID'];
$mac.=str_pad(strlen($data['VK_STAMP']),3,'0',STR_PAD_LEFT).$data['VK_STAMP'];
$mac.=str_pad(strlen($data['VK_REF']),3,'0',STR_PAD_LEFT).$data['VK_REF'];
$mac.=str_pad(strlen($data['VK_MSG']),3,'0',STR_PAD_LEFT).$data['VK_MSG'];
$mac.=str_pad(strlen($data['VK_ERROR_CODE']),3,'0',STR_PAD_LEFT).$data['VK_ERROR_CODE'];
$key=openssl_pkey_get_public($this->config['settings']['bank-public-key']);
if(openssl_verify($mac,base64_decode($data['VK_MAC']),$key)){
$return['result']='failed';
$return['reference-number']=$data['VK_REF'];
$return['order-code']=$data['VK_STAMP'];
$return['message']='payment rejected, error code '.$data['VK_ERROR_CODE'];
} else {
$return['result']='failed';
$return['message']='security hash incorrect - '.openssl_error_string();
}
openssl_free_key($key);
}
break;
case 'sampo-est':
if($data['VK_SERVICE']=='1101'){
$mac='';
$mac.=str_pad(strlen($data['VK_SERVICE']),3,'0',STR_PAD_LEFT).$data['VK_SERVICE'];
$mac.=str_pad(strlen($data['VK_VERSION']),3,'0',STR_PAD_LEFT).$data['VK_VERSION'];
$mac.=str_pad(strlen($data['VK_SND_ID']),3,'0',STR_PAD_LEFT).$data['VK_SND_ID'];
$mac.=str_pad(strlen($data['VK_REC_ID']),3,'0',STR_PAD_LEFT).$data['VK_REC_ID'];
$mac.=str_pad(strlen($data['VK_STAMP']),3,'0',STR_PAD_LEFT).$data['VK_STAMP'];
$mac.=str_pad(strlen($data['VK_T_NO']),3,'0',STR_PAD_LEFT).$data['VK_T_NO'];
$mac.=str_pad(strlen($data['VK_AMOUNT']),3,'0',STR_PAD_LEFT).$data['VK_AMOUNT'];
$mac.=str_pad(strlen($data['VK_CURR']),3,'0',STR_PAD_LEFT).$data['VK_CURR'];
$mac.=str_pad(strlen($data['VK_REC_ACC']),3,'0',STR_PAD_LEFT).$data['VK_REC_ACC'];
$mac.=str_pad(strlen($data['VK_REC_NAME']),3,'0',STR_PAD_LEFT).$data['VK_REC_NAME'];
$mac.=str_pad(strlen($data['VK_SND_ACC']),3,'0',STR_PAD_LEFT).$data['VK_SND_ACC'];
$mac.=str_pad(strlen($data['VK_SND_NAME']),3,'0',STR_PAD_LEFT).$data['VK_SND_NAME'];
$mac.=str_pad(strlen($data['VK_REF']),3,'0',STR_PAD_LEFT).$data['VK_REF'];
$mac.=str_pad(strlen($data['VK_MSG']),3,'0',STR_PAD_LEFT).$data['VK_MSG'];
$mac.=str_pad(strlen($data['VK_T_DATE']),3,'0',STR_PAD_LEFT).$data['VK_T_DATE'];
$key=openssl_pkey_get_public($this->config['settings']['bank-public-key']);
if(openssl_verify($mac,base64_decode($data['VK_MAC']),$key)){
$return['result']='success';
$return['payment-code']=$data['VK_T_NO'];
$return['reference-number']=$data['VK_REF'];
$return['order-code']=$data['VK_STAMP'];
$return['sender-name']=$data['VK_SND_NAME'];
$return['sender-account']=$data['VK_SND_ACC'];
} else {
$return['result']='failed';
$return['message']='security hash incorrect - '.openssl_error_string();
}
openssl_free_key($key);
}
if($data['VK_SERVICE']=='1901'){
$mac='';
$mac.=str_pad(strlen($data['VK_SERVICE']),3,'0',STR_PAD_LEFT).$data['VK_SERVICE'];
$mac.=str_pad(strlen($data['VK_VERSION']),3,'0',STR_PAD_LEFT).$data['VK_VERSION'];
$mac.=str_pad(strlen($data['VK_SND_ID']),3,'0',STR_PAD_LEFT).$data['VK_SND_ID'];
$mac.=str_pad(strlen($data['VK_REC_ID']),3,'0',STR_PAD_LEFT).$data['VK_REC_ID'];
$mac.=str_pad(strlen($data['VK_STAMP']),3,'0',STR_PAD_LEFT).$data['VK_STAMP'];
$mac.=str_pad(strlen($data['VK_REF']),3,'0',STR_PAD_LEFT).$data['VK_REF'];
$mac.=str_pad(strlen($data['VK_MSG']),3,'0',STR_PAD_LEFT).$data['VK_MSG'];
$key=openssl_pkey_get_public($this->config['settings']['bank-public-key']);
if(openssl_verify($mac,base64_decode($data['VK_MAC']),$key)){
$return['result']='failed';
$return['reference-number']=$data['VK_REF'];
$return['order-code']=$data['VK_STAMP'];
$return['message']='payment canceled';
} else {
$return['result']='failed';
$return['message']='security hash incorrect - '.openssl_error_string();
}
openssl_free_key($key);
}
break;
case 'nordea-est':
$MAC=strtoupper(md5(@$data['SOLOPMT_RETURN_VERSION'].'&'.@$data['SOLOPMT_RETURN_STAMP'].'&'.@$data['SOLOPMT_RETURN_REF'].'&'.@$data['SOLOPMT_RETURN_PAID'].'&'.$this->config['settings']['private-key'].'&'));
if($data['SOLOPMT_RETURN_MAC']==$MAC){
if(isset($data['SOLOPMT_RETURN_PAID']) && $data['SOLOPMT_RETURN_PAID']!=''){
$return['result']='success';
$return['payment-code']=$data['SOLOPMT_RETURN_PAID'];
$return['reference-number']=$data['SOLOPMT_RETURN_REF'];
$return['order-code']=$data['SOLOPMT_RETURN_STAMP'];
} else {
$return['result']='failed';
$return['message']='no payment code';
}
} else {
$return['result']='failed';
$return['message']='security hash incorrect';
}
break;
case 'nordea-fin':
$MAC=strtoupper(md5(@$data['SOLOPMT_RETURN_VERSION'].'&'.@$data['SOLOPMT_RETURN_STAMP'].'&'.@$data['SOLOPMT_RETURN_REF'].'&'.@$data['SOLOPMT_RETURN_PAID'].'&'.$this->config['settings']['private-key'].'&'));
if($data['SOLOPMT_RETURN_MAC']==$MAC){
if(isset($data['SOLOPMT_RETURN_PAID']) && $data['SOLOPMT_RETURN_PAID']!=''){
$return['result']='success';
$return['payment-code']=$data['SOLOPMT_RETURN_PAID'];
$return['reference-number']=$data['SOLOPMT_RETURN_REF'];
$return['order-code']=$data['SOLOPMT_RETURN_STAMP'];
} else {
$return['result']='failed';
$return['message']='no payment code';
}
} else {
$return['result']='failed';
$return['message']='security hash incorrect';
}
break;
case 'sampo-fin':
$MAC=md5($this->config['settings']['private-key'].$data['VIITE'].$data['SUMMA'].$data['STATUS'].$this->config['settings']['KNRO'].$data['VERSIO'].$data['VALUUTTA']);
if($data['STATUS']==0 && $data['TARKISTE']==$MAC){
$return['result']='success';
$return['order-code']=$data['VIITE'];
} else if($data['STATUS']!=0 && $data['TARKISTE']==$MAC){
$return['result']='failed';
$return['message']='problem with payment, status '.$data['STATUS'];
} else {
$return['result']='failed';
$return['message']='security hash incorrect';
}
break;
case 'estcard-est':
echo '<pre>';
print_r($data);
echo '</pre>';
$macstring=sprintf("%03s",$data['ver']).sprintf("%-10s",$data['id']).sprintf("%012s",$data['ecuno']).sprintf("%06s",$data['receipt_no']).sprintf("%012s",$data['eamount']).sprintf("%3s",$data['cur']).$data['respcode'].$data['datetime'].sprintf("%-40s",$data['msgdata']).sprintf("%-40s", $data['actiontext']);
$mac='';
for($i=0;$i<strlen($data['mac']);$i+=2){
$mac.=chr(hexdec(substr($data['mac'],$i,2)));
}
$public_key = openssl_get_publickey($this->config['settings']['bank-public-key']);
if(openssl_verify($macstring,$mac,$public_key)){
if($data['respcode']=='000'){
$return['result']='success';
$return['order-code']=$data['ecuno'];
} else {
$return['result']='failed';
$return['message']='problem with payment, status '.$data['respcode'];
}
} else {
$return['result']='failed';
$return['message']='security hash incorrect';
}
openssl_free_key($public_key);
break;
}
return $return;
}
public function referenceNumber($nr){
$nr = (string)$nr;
$weight = array(7,3,1);
$sl = $st = strlen($nr);
while($nr{--$sl}>='0'){
$total += $nr{($st-1)-$sl}*$weight[($sl%3)];
}
$checknr = ((ceil(($total/10))*10)-$total);
return $nr.$checknr;
}
}
?>
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