vars before a form submit

Anon

I have a php file that submits to itself. The page works great after the first submit. For example, I have a variable named $table. I also have a text box named table. So when the form is submitted, the php variable $table will retrieve the value that was in the html text box named table. However, when the page is first pulled up, there wont be any key-value paris in the submit string. Therefore, $table wont be initialized and a reference to $table anywhere in the page will produce errors. I know I can load values when the page is first called by appending them to the link(ie. file.php?table=default). But I wont have that option. How can I code my page so $table or any other variable gets a default variable on the first load and the submitted value on subsequent loads?

Anon

Hey i dont know much about this stuff but I would think that if you created another variable and set it equal to $table when the form loads, then on upload you reassign it the new variable (users input) at the end of your uploading function it would do this for you???

Anon

if($table == "")
{
$table = "nothing";
}

replace nothing with whatever you want $table to default to. if you dont want $table to be anything at all just set table to ""..

I'm a little unsure if you were asking for this... or something else.

Anyway, let me know
Craig

Anon

i've tried that, but unfortunatlly, i can't do a comparison on a variable that doesn't exist. I guess the real question is how do I check to see if the variable exists?

Anon

if($variable)
{
do_this();
} else {
do_this();
}

Anon

I think you're wanting isset($table).