使用jquery上传Image时出错

Question

我需要帮助。我有这个代码在我编辑文本时工作正常，但是当我去上传任何图像时它会给我错误。谁能告诉我我做错了什么？

<div id="page_file">
    <form method="post" enctype="multipart/form-data">
        <div id="img_upload">
            <input type="file" name="image10" class="image"/>
            <p><span>Note:</span>Image resolution should be exactly  700(width)*500(height) pixels.</p>
        </div><!-- img_upload -->                           
        <input type="submit" name="upload10" class="btn" value="upload"/>
    </form>
<?php

if (isset($_POST['upload10'])) {

    $category_id = 410;
    $exe = end(explode(".", basename($_FILES['image10']['name'])));
    $type = $_FILES['image10']['type'];
    $temp = $_FILES['image10']['tmp_name'];
    $size = $_FILES['image10']['size'];
    $random = rand(1000, 9999);
    $image_id = "img_" . $page_id . $category_id . "_" . $random;
    $name = $image_id . "." . $exe;
    $path = I_UPLOADPATH . $name;
    $img_size = getimagesize($temp);
    $width = $img_size[0];
    $height = $img_size[1];

    $extension = array(
        "image/jpeg",
        "image/jpg",
        "image/png",
        "image/gif"
    );
    if (in_array($type, $extension)) {
        if (($width == 700) && ($height == 500)) {
            if (move_uploaded_file($temp, $path)) {
                $insert = "insert into gallery set srno='', image_id = '" . $image_id . "', title ='" . $name . "', page_id = '" . $page_id . "', category_id = '" . $category_id . "'";
                $execute = mysql_query($insert);

                if (!$execute) {
                    echo "Data Not Procced.....";
                    exit;
                } else {

                    // echo "<script type='text/javascript'>window.alert('Upload Successfully.....');</script>";

                    echo ("<script>location.href = 'work.php';</script>");
                }
            } else {
                echo "Error in Upload Image";
            }
        } else {
            echo "You can Upload only 700 * 500 px Image Only";
        }
    } else {
        echo "You can Upload only .JPG, .PNG, .GIF Image.....";
    }
}

?>
</div>

这是代码的一部分，通常应该有效，但显示图像上传错误。