Need to rename an image after upload
<p>i have this code here which outputs me an image.. I need to change it because for the moment it gives me something like : test.jpg, what i need is for it to give me test_s.jpg</p>

<p>Using the rename function i guess!</p>

<pre><code>$tempFile = $_FILES['Filedata']['tmp_name'];
$targetPath = $_SERVER['DOCUMENT_ROOT'] . $_REQUEST['folder'] . '/';
$targetPath = str_replace('//','/',$targetPath);
$targetFile = $targetPath . $_FILES['Filedata']['name'];
tamano_nuevo_foto($stempFile, 420, $stargetFile);
</code></pre>
