Is there anyway to retrieve data from a page using $_GET and $_POST to insert a value into an HTML table?

Like...
[code]<input type="text" value="<?php echo $_GET['Q']; ?>">[/code]
?

I know this sounds really stupid, but what does the 'Q' represent?

So under that column which I'm wanting to insert the data from another page I would use $_POST inside of the <td> </td> tags?

[quote author=ChroniX link=topic=17343.msg176594#msg176594 date=1203627361]
I know this sounds really stupid, but what does the 'Q' represent?
[/quote]

$_GET['Q']

Q = variable you request for example: site.com/?Q=blah

Q = 'blah'

[quote author=Andy link=topic=17343.msg176593#msg176593 date=1203627236]
Like...
[code]<input type="text" value="<?php echo $_GET['Q']; ?>">[/code]
?
[/quote]
No!

[code]<input type="text" value="<?php echo htmlentities($_GET['Q']); ?>">[/code]