Single PHP file & 2 pages og long form

[leonlaitl]

I have a single php file, and 2 pages of long forms.
After I press Previous & Next button, all the data lost. Please Help...

My Code: form.php

<?PHP if ($form=="form1") { ?>
<form name="form1" method="post" action="">
<input type="hidden" name="field2" value="<?PHP echo $field2; ?>">

<input type="text" name="field1" value="<?PHP echo $field1; ?>">
<a href="form.php?form=form2"><img src="images/btn_next-form.gif" alt="Next Form" width="104" height="25" border="0"></a>
</form>
<?PHP } ?>

<?PHP if ($form=="form2") { ?>
<form name="form2" method="post" action="">
<input type="hidden" name="field1" value="<?PHP echo $field1; ?>">

<input type="text" name="field2" value="<?PHP echo $field2; ?>">
<a href="form.php?form=form1"><img src="images/btn_prev-form.gif" alt="Prev Form" width="104" height="25" border="0"></a>
</form>
<?PHP } ?>

[________]

First of all you are not posting the form.
You need a submit button and to set the value of action="" (in the <form method="post" ACTION="SITE.PHP">)

Second, if you are running php with register globlas off then you need to change the variable echo code to $_POST['FieldName']

[leonlaitl]

BUT I just want to use single PHP file only.
Error Page & Result page also display on form.php.

Can I separates the forms (example: Form1.php & Form2.php)?

I have to create a new PHP file (SITE.PHP), correct?

What's the purpose for this file? To receive the data?

If I don't want to create another new PHP file? So how?

Any idea? Thanks.