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Adaaam

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  1. I knew it would be something stupid. Thanks for pointing that out.
  2. Hello, Well this is embarrasing. Can anyone tell me why the $_SESSION['values'] array keeps getting overwritten every time I try adding a new value to it? Instead of the new value being added to the end of the array, the whole array gets overwritten with the new value and I don't know why? <?php session_start(); $_SESSION['values'] = array(); if (isset($_POST['value'])) { $_SESSION['values'][] = $_POST['value']; } var_dump($_SESSION['values']) . '<br>'; ?> <html> <head> <title>Test</title> </head> <body> <form method="post"> <input type="text" name="value"> <input type="submit" name="submit" value="submit"> </form> </body> </html> Hope this makes sense, I really don't know why it's not working. Thanks, Adam
  3. Well I'm sort of working on an instant messaging thing where users can send messages to each other, not just one big chat room if you know what I mean, like Facebook where you can message different people. I mean I haven't written any code for it yet I was just thinking it out to get an idea of how I could do it. I just wanted to make sure I wasn't going to kill the server with Ajax requests Also I'll have to look into database caching.
  4. Thanks for the help I know this may sound lazy because I don't know alot about node.js, but lets say I don't use long polling and just make an AJAX request every 2 minutes to get new messages for a user, would that have a big impact on the server? I know it's hard to tell because I don't have any details regarding the number of clients or anything like that but what do you think? Thanks, Adam
  5. Hi all, I need some guidance on how I can build an AJAX/PHP chat application, sort of like an instant messaging thing like the one on Facebook. It doesn't have to be anything fancy as long as it works. I have some ideas as to how I can build it but I've never tried to do anything like this before so I'm a bit lost. I'm confident I can build the entire PHP side of things up until I have to use AJAX, then I'm stuck. The main concern I have is the affect it will have on the server, lets say I have a Javascript timer to check for new messages sent at certain intervals, wouldn't that have a massive affect on the server? I can only think of using a timer to get new messages for each user, I can't come up with any other way to get it to work. I just don't want to kill the server with AJAX requests if that's even possible. So really my question is, would it be okay to use a timer to get new messages of each user at certain intervals, or is there another way of doing it? Hope this makes sense Thanks, Adam
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