Question

I have a small section of code. When the table is empty this code works fine and enters in to the table fine. But then if i try again then this fails with the error?

What am i doing wrong?

Thanks

// On my Function page

    function admin(){
                    connect();

                    $query = mysql_query("INSERT INTO results 
                    (t_id, pos1, pos2, pos3)
                    VALUES  ('$_POST[t_id]','$_POST[pos1]','$_POST[pos2]','$_POST[pos3]')")
                    or die ("Error.");

                    $b = "Updated fine</b></a>.";

                    return $b;
                        exit();
            }

    // Then on my main page

<?php
    include ('functions.php');
    if (isset($_POST['admin'])){
    $admin = admin();
    }
?>

            <div id="content">
                    <div id="admin">
                        <form action="" method="post">
                            <table width="100%" border="0" align="center" cellpadding="3" cellspacing="1">
                                <tr>
                                    <td width="100%"><?php echo "$admin"; ?></td>
                                </tr>
                                <tr>
                                    <td width="100%"><label>Track <input type="text" name="track" size="25" value="<? echo $_POST[t_id]; ?>"></label></td>
                 </tr>
                                <tr>
                                    <td width="100%"><label>Position 1<input type="text" name="pos1" size="25" value="<? echo $_POST[pos1]; ?>"></label></td>
                                </tr>
                                <tr>
                                    <td width="100%"><label>Position 2 <input type="text" name="pos2" size="25" value="<? echo $_POST[pos2]; ?>"></label></td>
                                </tr>
                                <tr>
                                    <td width="100%"><label>Position 3 <input type="text" name="pos3" size="25" value="<? echo $_POST[pos3]; ?>"></label></td>
                                </tr>
                                <tr>
                                    <td width="100%"><input class="save" type="submit" value="" name="admin"></td>
                                </tr>
                            </table>
                        </form>
                    </div>
                </div>

Answer 1

Without seeing your table schema, I can only think you have UNIQUE t_id and you want to insert the same ID into it.

Several way to debug:

• Use or die ("Error: " . mysql_error()); instead of just or die ("Error.");
• Check your table schema: SHOW CREATE TABLE tablename and write it down on your question, so we can see if it’s causing error.