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POPHP and JQuery Button trigger not working
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copied!<p>Im currently new to PHP and JQuery after having using ASP.Net and C Sharp for the 2 years. I have this major problem in which i require some assistance in.</p> <p>I have a HTML <code><input type="submit" id="btnWL" value="Add to Wishlist"></code> button. Basically when this button is pressed a table called 'wishlist' in the database is checked to see if the current product is already in a wishlist. If no the button will trigger a database save else it will return a JQuery alert pop up error message.</p> <p>I having difficulty in passing 2 PHP variables: <code>$_SESSION["username"]</code> and <code>$_GET["ProductId"]</code> into this JQuery method:</p> <pre><code><script type="text/javascript"> $(document).ready(function() { $('#btnWL').live('click', function() { $.post("addToWishlist.php"); }); }); </script> </code></pre> <p>As you can see this JQuery method must pass those values to an external PHP File which checks for an already exsisting record in the 'wishist' table with those details.</p> <pre><code><?php $WishlistDAL = new WishlistDAL(); $result = $WishlistDAL->get_ProductInWishlistById($_GET["ProductId"]); if (isset($_POST["isPostBack"])) { if (isset($_SESSION["username"])) { if (isset($_GET["btnWL"])) { //Check if ProductId is in Cart if (mssql_num_rows($result)>0) { //Return an error //Sumhow this has to trigger an alert box in the above JQuery method } else { //Write in Wishlist Table $WishlistDAL->insert_ProductInWishlist($_GET["ProductId"], $_SESSION["username"]); } } } else { //Return Error } } ?> </code></pre> <p>Another problem I have is then displaying an alert box using the same JQuery method for any errors that where generated in the php file.</p> <p>Any Ideas how I can implement this logic? Thanks in advance.</p>

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