Nahrávání a správa souborů ukázka v PHP

<?php
/**
 * @author sczdavos
 * @site www.itnetwork.cz
 */

header('Content-type: text/html; charset=utf8');

if (isset($_FILES['image_']))
{
    $imagesCount = count($_FILES['image_']['name']);
    for ($i = 0; $i < $imagesCount; $i++)
    {
        if (move_uploaded_file($_FILES['image_']['tmp_name'][$i], 'files/' . $_FILES['image_']['name'][$i]))
            echo('nahráno');
        else
            echo('chyba');
    }
}

if (isset($_POST['del']))
{
    foreach ($_POST['del'] as $file)
    {
        if (unlink('files/' . $file))
            echo($file . ' smazáno');
        else
            echo($file . ' nepodařilo se smazat');

    }
}


echo('
<form method="post" name="file_upload" enctype="multipart/form-data">
    <input type="file" multiple="" size="26" name="image_[]" /><br />
    <input type="submit" name="upload_imgs" value="Nahrát" />
</form>');


echo('<form method="post" name="evidence">
    <table>
        <tr>
            <th>&nbsp;</th><th>soubor</th>
        </tr>');

$dir = 'files/';
if ($dh = opendir($dir))
{
    while (($file = readdir($dh)) !== false)
    {
        if ((is_dir($dir)) && (strlen(str_replace('.', '', $file)) > 0))
        {
            echo('
                <tr>
                    <td><input type="checkbox" name="del[]" value="' . $file . '"</td>
                    <td><a href="' . $dir . $file . '" style="color: blue;">' . $file . '</a></td>
                </tr>
        ');

        }
    }
    closedir($dh);
}

echo('</table>
    <input type="submit" name="delete" />
</form>');