Need help

hello everyone, i am new in php. I have a problem in this code --

<p><a href="choice-enter.php">Go Here to enter your choice.</a> <p>
<p><a href="insert_form.php">Click here</a> to enter further information. </p>

I want to execute choice-enter.php only if insert_form (consisting a form to fill up) is filled. How can i achieve this ?

Not sure what you need, but http://www.tizag.com/phpT/forms.php may give your an introduction on how to use form with PHP