PHP session variable, check then delete
<p>Code: 
    

<pre><code>    if(!$picture) $error = $error."&lt;div&gt;This is a photo site, we require you select a photo.&lt;/div&gt;";
    if(!$imgname) $error = $error."&lt;div&gt;You must enter a name for your photo.&lt;/div&gt;";
    if(!$description) $error = $error."&lt;div&gt;You must enter a description for your photo.&lt;/div&gt;";
    else if(strlen($description) &gt; 500) $error = $error."&lt;div&gt;Your descriptions to long. 500 characters max.&lt;/div&gt;";

    if(!$error) {
        $case = 2;

        $max_width_new = 190;

        $make_thumb=1; $make_medium=1; $make_original=1;

        $imagename = "picture";

        $folders = "accounts/".$dbid."/";

        if(!file_exists($folders)) 
            mkdir($folders);

        include("scripts/php/uploadpicture.php");

        if($file) {
        $connect = mysql_connect("localhost","headinth_admin","adobe1234");
        mysql_select_db("headinth_core");
        mysql_query("INSERT INTO pictures (id, uploader, name, description, location, picture, date) VALUES('','$dbid','$imgname','$description','$location','$file_name','$date')");
        $_SESSION['uploaded'] = 1;

        header("location: ?upload");
        }
    } else echo "&lt;div class='green f18 fl coolvetica' style='text-align:left;'&gt;".$error."&lt;/div&gt;&lt;div class='c20'&gt;&lt;/div&gt;";
}
if(isset($_SESSION['uploaded'])) {
    echo "&lt;div class='white f18 fl coolvetica' style='text-align:left;'&gt;Your picture was uploaded.&lt;/div&gt;&lt;div class='c20'&gt;&lt;/div&gt;";
    unset($_SESSION['uploaded']);
}
?&gt;
</code></pre>

<p>So it goes through and if everything successful it declares $_SESSION['uploaded'] = 1. Makes sense. Since theres a header it refreshes the page. Then I check if $_SESSION['uploaded'] exists, to see if a photo was just uploaded. If it was then it should send the message "Your photos been uploaded". Then it would have to delete the $_SESSION['uploaded'] variable so it doesn't show up again if the page is refreshed or an invalid submission is made. </p>

<p>The issue is that its just skipping the if(isset($_SESSION['uploaded'])) line and just unsetting the session. So its not echoing the success message. IF i delete the unset it works, just always appears until the entire session is destroyed. So the goal, carry a variable over a page refresh, echo it then remove it.</p>
