Question

I have a simple coding problem. I try to create a page with a textbox and a share button.

When the user clicks the share button the text in the textbox get inserted as string into the database table named “posts”.

I use the following code.

<?php
    if(isset($_POST['share']))
    {
            $status = $_POST['status'];
            $res = mysql_query("insert into `posts`(postid,username,post,pointscollected) values('','$username','$status','')");
            if($res)
                echo "<script type='text/javascript'>alert('Posted successfully')</script>";
            else
                echo "<script type='text/javascript'>alert('some error')</script>";
    }
    else
    {
        ?>
            <form action="<?php $_SERVER['PHP_SELF']?>" method="post">
            Status : <input type = "text" name ="status">
            <input type = "submit" name ="share">
            </form>
        <?php
    }

This solution works fine but there is a problem when the user refreshes the page. The browser will show a message window asking for resend the information, which will submit the post to the table again. Then the same entry is in the table twice.

I want the user to stay on the same page after submitting. But a page refresh should not show the message window or send the information again.

Thanks in advance!

Answer 1

Redirect the user after he shares, use redirect

header('Location: whatever.php');
exit;

Use this :

<?php
if(isset($_POST['share'])) {
      $status = $_POST['status'];
      $res = mysql_query("insert into `posts`(postid,username,post,pointscollected) values('','$username','$status','')");
      if($res) {
      ?>
          <script type='text/javascript'>alert('Posted successfully')</script>
      <?php              
          header('Location: whatever.php');
          exit;
        } else {
         ?>
          <script type='text/javascript'>alert('some error')</script>
       <?php
          header('Location: whatever.php');
          exit;
         }
    }
 ?>

And btw better don’t alert the users using javascript

AND DO USE BRACES AROUND IF ELSE

P.S : You Can Also Redirect An User Using JavaScript window.location

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