Frames, HTTP_POST_VARS, IE Reload

[Anon]

What is the best way to check if a page is being reloaded with empty data and break out? Session IDs? Cookies?

I have a webpage with two frames. One frame has a form created with flash that post variables to another frame that calls a php cgi script on submit.

After the php cgi script has been loaded and the html page containing the two frames is reloaded by clicking IE\'s reload button an attempt to reload the php cgi script is made.

Since the form didn\'t post to the cgi script, the HTTP_POST_VARS array is empty and the script bombs out.

Obviously some error-checking needs to be done - any advice or direction would be appreciated...

Thanks.

[Anon]

You could use isset(variable_name), and the other type checking functions in PHP (is_string(), is_object() and so on).

[Anon]

Thanks Anders. That's what I was thinking but I was hoping others might now of a cleanier solution- maybe through the dom using jscript to check if the onload was produced from the browser or a submit action. ???.