Question about HTML and PHP.

Let's say I have two files, main.html and graph.php.

Graph.php, displays an image, and I have that image in an <iframe> inside main.html.

In main.html, I have added some forms, to pass arguments on to graph.php. Works great.

Only problem, is when I pass those arguments via the form in the html code, and have it linked to graph.php, and I send data to it, it takes me away from main.html and my browser goes directly to the php file - instead of rendering my new data in the iframe.

Any idea around that?

I don't know PHP, but I have a small bit of knowledge of HTML, but whenever you are working with frames you need to tell whatever it is you are working with to target that frame.

So in basic HTML, if I had a frame of say, 20% 80% for a navigation page on the left and for my pages to show up on the right, on my HTML page that loads in the left frame I would need to put something like <a href="http://url.com/page.html" target=_main">LINK</A>

Where _main is the name of said frame. I don't know if that helps, basically you need to find a way to tell your page to load new data into the desired frame.

Not sure if I understand this correctly, but you have a form on main.html, and whenever you press the submit button it takes you to graph.php, but you just want it to reload the iframe with the new graph.php?

Two (more or less) easy solutions:

a) Two forms. One on main.html, one on graph.php. The one on graph.php is entirely hidden, with the same hidden input fields as the ones specified on main.html. You replace the 'submit' button on main.html with a button that runs a script that will copy all the current form values from main.html to the hidden fields in graph.php, then submit the form inside the iframe. Only the iframe should reload then.

b) This is assuming graph.php is just an image, nothing more. Drop the iframe completely (iframes are stupid), and instead make graph.php directly output the raw image data. Instead of an iframe, you include graph.php within an <img> tag, where the src is "graph.php?param1=foo&param2=bar". Those paramaters are then taken from the form that is submitted directly on main.html. (Of course main.html would have to become a php script for this, so it can dynamically process the image path)



Edit:

c) No clue if this exists or not, but there may be a "target" parameter for the <form> tag. If you can target other frames with this form, then the solution is of course ridiculously simple.