Get started by experimenting with this PHP 5 sample client
A complete, yet still simple example for an IBAN calculator SOAP client: Calculating German IBANs.
Here you can see the sample code in action.
To run it on your own server, download the script (you can use the link at the bottom of the page), fill in your own premium subscription user ID and password, put the PHP file onto your own server (needs php5 and the php-soap and openssl packages), and you should be ready to go.
<?php
if (strlen($_REQUEST["action"]) >
0) {
$client = new SoapClient('https://ssl.ibanrechner.de/soap?wsdl');
$result = $client->calculate_iban($_REQUEST["country"], $_REQUEST["blz"], $_REQUEST["kontonr"], 'premium subscr. user id', 'password');
print "Result of SOAP call \$client->calculate_iban('"._REQUEST
["country"].
"', '".
$_REQUEST["blz"].
"', '".
$_REQUEST["kontonr"].
"', ...):
<pre>";
} else
print '<form action="sample.php" method="post">
<font face="Verdana,Arial,Helvetica" size="1" color="#3366CC">
<input name="country" type="hidden" value="DE">
<font face="Verdana,Arial,Helvetica" size="1" color="#3366CC">
Bankleitzahl</font><br/> <input type="text" size="22" name="blz" value=""/><br/>
<font face="Verdana,Arial,Helvetica" size="1" color="#3366CC">
Kontonummer:</font><br/> <input type="text" size="22" name="kontonr" value=""/><br/>
<input type="submit" style="height:21px;font-size:11px" name="action"
value="IBAN berechnen" title=" IBAN berechnen "/>
<br/></form>';
?>