passing over variables from a form to multiple pages

[koodie]

I have some data from text fields that are being passed over through a
form that I am displaying with the $_POST. Once i have
echo'd out this data onto the next page, i'd like to continue to use
it on the next page without submitting it through a form action. I haven't figured out how to do this properly
just yet
example.

//first page (index.html)
 
<form action="check.php" method="post">
<select name="rooms">
<option value="1">1</option>
</select>
<select name="adult">
<option value="1">1</option>
</select>
<input name="submit" type="submit">
</form>
 
//new page (check.php)
<?php
echo "You're booking Details are: {$_POST['rooms']}";
echo " {$_POST['adult']}";
?>
////

Now I want to use this $_POST['rooms'] and $_POST['adult'] value on "register page" that when i move to the register.php, i will be able to see those values and continue to use this value
across multiple pages?

Any help is much appreciated..thanks guys!

[RonB]

Store the data in session vars.

Basic PHP Sessions
http://www.w3schools.com/php/php_sessions.asp