<form action="https://frontend.pay1.de/frontend/v2/" method="POST">
<input type="hidden" name="portalid" value="2000000">
<input type="hidden" name="aid" value="10000">
<input type="hidden" name="mode" value="test">
<input type="hidden" name="request" value="createaccess">
<input type="hidden" name="clearingtype" value="elv">
<input type="hidden" name="reference" value="1234567">
<input type="hidden" name="productid" value="1234">
<input type="hidden" name="autosubmit" value="yes">
<input type="hidden" name="hash" value="70eaec2a33fa1b4674c0b1ge5e982966">
<input type="hidden" name="bankcountry" value="DE">
<table>
<tr>
<td>Kontonummer</td><td><input type="text" name="bankaccount"></td>
</tr>
<tr>
<td>BLZ</td><td><input type="text" name="bankcode"></td>
</tr>
</table>
<input type="submit" value="Buy now!">
</form>

// Important notes:
//
// * Intention of this sample is to show the concept of HASH-calculation
//   It’s not a fully valid payment request
//
// * Please add further parameters as needed:
//     clearingtype / subtype
//     mode (“live” or “test”)
//     further as needed - depending on clearingtype, subtype, ...
//
// * Please refer to the table in https://docs.payone.com/x/tIUS and add values to
//   HASH-calculation as indicated by column “Hash”
//
$request="authorization";    // Request
$portalid=2000001;           // Portal ID
$aid=10002;                  // Sub Account ID
$key="geheim";               // Key (configurable in the payment portal)

$id[1]="123-345";            // Your item no.
$pr[1]=5900;                 // Price in Cent
$no[1]=1;                    // Quantity
$de[1]="Puma Outdoor";       // Item description
$va[1]=19;                   // VAT (optional)
$amount=round($pr[1]*$no[1]);// Total amount
$currency="EUR";             // Currency
$reference="73464354";       // Merchant reference no.
$customerid="123456";        // Merchant customer ID (option)

// usage of md5-hash
// select “md5” in PMI-portal-settings
// $hash=md5($aid . $amount . $currency . $customerid .
//        $de[1] . $id[1] . $no[1] . $portalid . $pr[1] .
//        $reference . $request . $va[1] .
//        $key);  // Parameters in sorted order + key

// usage of sha2-384-hash
// select “sha2-384” in PMI-portal-settings
$hash=hash_hmac(“sha384”, $aid .
          $amount .
          $currency .
          $customerid .
          $de[1] .
          $id[1] .
          $no[1] .
          $portalid .
          $pr[1] .
          $reference .
          $request .
          $va[1], // !! Parameters in sorted order
          $key);  // !! $key is an individual parameter !

$url="https://frontend.pay1.de/frontend/v2/?request=" . $request .
          "&aid=" . $aid .
          "&portalid=" . $portalid .
          "&customerid=" . $customerid .
          "&currency=" . $currency .
          "&amount=" . $amount .
          "&reference=" . $reference .
          "&id[1]=" . $id[1] .
          "&pr[1]=" . $pr[1] .
          "&no[1]=" . $no[1] .
          "&de[1]=" . $de[1] .
          "&va[1]=" . $va[1] .
          "&hash=" . $hash;

table {
padding: 0px;
border-width: 0px;
outline-width: 0px;
}
img {
border-width: 0px;
outline-width: 0px;
}
td {
font-size: 11px;
font-family: Arial, Helvetica, Geneva, SunSans-Regular
line-height: 14px;
padding-top: 2px;
padding-bottom: 2px;
}
input.long {
font-size: 10px;
line-height: 12px;
width: 98%;
border: solid 1px #999;
}
input.short {
font-size: 10px;
line-height: 12px;
width: 47%;
border: solid 1px #999;
}
input.submit {
color: #fff;
font-size: 11px;
background-color: #666;
text-transform: uppercase;
letter-spacing: 1px;
cursor: pointer;
}

input.submit[disabled]

{
color: gray;
cursor: wait;
}
form {
display: inline;
}
select.long {
font-size: 10px;
width: 100%;
}
select.short {
font-size: 10px;
width: 47%;
}
a {
color: #000;
}
a:hover {
color: #666;
}
.fullbox {
background-color: #e6e6e6;
width: 320px;
padding-right: 10px;
padding-bottom: 10px;
padding-left: 10px;
}
.headbox {
color: white;
background-color: #666;
text-transform: uppercase;
letter-spacing: 1px;
width: 100%;
height: 20px;
margin-top: 20px;
margin-bottom: 10px;
}
.formbox {
width: 100%;
}
.infobox {
width: 100%;
border-color: #666666;
border-width: 1px;
border-style: solid;
}
.footer {
width: 320px;
height: 30px;
}
.stripline {
border-top: 1px solid #999;
}
.errortext {
color: #c00;
}