function-Form

<?
// Create function

function Test($username, $password)
{
// check username and password
if($username == 'gebruikersnaam'  && $password == 'wachtwoord')
    {
    print "Welkom $username";
        }
// looks if username pass is empty
        else if
        ($username == '' && $password == '')
        {
 print "Voer uw gebruikersnaam en wachtwoord in.";
        }else if ($username == '')
        {
 print "Voer wel een gebruikersnaam in.";
        }else if ($password == '')
        {
 print "Voer wel een wachtwoord in";
        }else
        {
    echo "<b><center><font face=\"Verdana\" size=\"+4\">ACCESS DENIED</font></b><br>De opgegeven gebruikersnaam of         wachtwoord is onjuist.</center>";

 }
}
?>

<?
// Create function
 
function Test($username, $password)
{
// check username and password
if($username == 'gebruikersnaam'  && $password == 'wachtwoord')
    {
    print "Welkom $username";
        }
// looks if username pass is empty
        else if
        ($username == '' && $password == '')
        {
 print "Voer uw gebruikersnaam en wachtwoord in.";
        }else if ($username == '')
        {
 print "Voer wel een gebruikersnaam in.";
        }else if ($password == '')
        {
 print "Voer wel een wachtwoord in";
        }else
        {
    echo "<b><center><font face=\"Verdana\" size=\"+4\">ACCESS DENIED</font></b><br>De opgegeven gebruikersnaam of         wachtwoord is onjuist.</center>";
 
 }
}
?>

		<form action="<?php print $_SERVER['PHP_SELF'] ?>" method="POST" target="_self" enctype="application/x-www-form-urlencoded">

<table border="0" width="86%" bgcolor="#808080">
	<tr>
		<td>

<table border="0" width="22%" bgcolor="#808080">
	<tr>
		<td>
		<p align="center">Username</td>
		<td width="148">
		<p align="center"><font color="#FFFFFF"> 
<input id="username" name="username" size="20" maxlength="15"/></font></td>
	</tr>
	<tr>
		<td>
		<p align="center">Password</td>
		<td width="148">
		<p align="center"><font color="#FFFFFF">
<input id="password" name="password" type="password" size="20" maxlength="15"/></font></td>
	</tr>
	
</table>
<p align="center"><input type="submit" action="<? Test($username,$password); ?>" value="Login" style="float: center"/>

<form action="<?php print $_SERVER['PHP_SELF'] ?>" method="POST" target="_self" enctype="application/x-www-form-urlencoded">
 
<table border="0" width="86%" bgcolor="#808080">
	<tr>
		<td>
 
<table border="0" width="22%" bgcolor="#808080">
	<tr>
		<td>
		<p align="center">Username</td>
		<td width="148">
		<p align="center"><font color="#FFFFFF"> 
<input id="username" name="username" size="20" maxlength="15"/></font></td>
	</tr>
	<tr>
		<td>
		<p align="center">Password</td>
		<td width="148">
		<p align="center"><font color="#FFFFFF">
<input id="password" name="password" type="password" size="20" maxlength="15"/></font></td>
	</tr>
 
</table>
<p align="center"><input type="submit" action="<? Test($username,$password); ?>" value="Login" style="float: center"/>