php upload - undefined index iis

My html form looks something like this:

 <form action="dins.php" method="get" name="test" enctype="multipart/form-data">
        <table class="formTable" id="programTable">
            <tr>
                <td class="ft_head">Title</td>
                <td><input type="text" size="26px" name="title" id="title" autocomplete="off" /></td>
                <td></td>
            </tr>
            <tr>
                <td class="ft_head">Objective</td>
                <td><textarea width="26px" height="18px" name="obj" id="obj" autocomplete="off"></textarea></td>
                <td></td>
            </tr>
            <tr>
                <td class="ft_head">Theory</td>
                <td><textarea width="26px" height="36px" name="theory" id="theory" autocomplete="off"></textarea></td>
                <td></td>
            </tr>
            <tr>
                <td class="ft_head">Code</td>
                <td><input type="file" width="26px" name="code" id="code" /></textarea></td>
                <td></td>
            </tr>
            <tr>
                <td class="ft_head">Output</td>
                <td><input type="file" width="26px" name="output" id="output" /></td>
                <td></td>
            </tr>
            <tr>
                <td class="ft_head">Conclusion</td>
                <td><textarea width="26px" height="36px"          name="conc" id="conc" autocomplete="off"></textarea></td>
                <td>&l开发者_JS百科t;/td>
            </tr>
        </table>
        <input type="submit" value="submit" name="sub" /> 
    <form>

My part php script is this:

if(isset($_GET['title']) && isset($_GET['obj']) && isset($_GET['theory']) &&   
$_FILES['code']['size']>0 && $_FILES['output']['size']>0 && isset($_GET['conc']))

I am getting the following error:

 _Unable to fetch values.PHP Notice: Undefined index: code in    
 E:\Repository\HTML\123\assign_cg\dins.php on line 4_

I tried modifying php.ini for upload_max_size but did not help. I am running WIMP.

---

You should change your form method to POST.

You cannot upload files via GET, that is what POST is for.

In case more clarification is really needed, GET is generally used for retrieving data from the server, while POST is for sending data to the server.