echo - Display Form Input PHP -

i sending form on php , displaying results on new page. display dates inputted user on new page have reminder of date entered. have tried following did not work:

echo "$start" 

here code front-end form:

<form action="availability" method="get"> <div id="cin">check-in date: <input type="text" id="start" name="start"></div> <div id="cout">check-out date: <input type="text" id="end" name="end"></div>  <div id="csubmit"><input type="submit"></div> </form> 

'start' being field i'm trying pull. idea?

$_get['start']  

if it's method="get", otherwise

$_post['start'] 

or if you're lazy

$_request['start'] 

which both post , (in specific order ;o)