Question

I have an html page with a form. In the form I have a search function and a delete function that will be available in each results’ row, in this way:

..<td><img src="delete.gif" style="cursor: pointer" onClick="javascript:delete();"></td>..

    <input type="submit"   value="search" onClick="javascript:search();">

In a . js file I have both functions passing the parameters to a php file via jquery’s ajax function.

Let’s go to the php file:

There are no problems with the search function: I get the parameters by $_REQUEST and I do a select query.

By clicking delete.gif in the form, I get to the delete function. The query deletes the selected row and right after I need to call the search function so I can show the results without the deleted row.

And here comes the trouble: both functions use $_REQUEST to build the queries so when calling search function after deleting I have the delete parameters stored in $_REQUEST.

How can I recover the search parameters I had in $_REQUEST in the first search so I can do that search again after deleting??

Here’s a glimpse of the delete function in the php file:

function deleteResult($_REQUEST['param1'],$_REQUEST['param2'], $_REQUEST['param3'])
{  
    $strSqlDelete = "DELETE FROM …"; // query working in database
    //here the connecting to the database code
        $result = search($_REQUEST['param1'],$_REQUEST['param2'], $_REQUEST['param3']);
        echo utf8_encode($result);
        exit();
}

Thanks a lot!!

Answer 1

It’s not too safe to use $_REQUEST superglobal. Use $_POST or $_GET depending on your method. To store something for later use use $_SESSION suberglobal array.

    session_start(); // In the beginning of your script

...

    $_SESSION['param1'] = $_REQUEST['param1'];

Then you can use $_SESSION['param1'] anywhere else within your site even after page reloading.