上传图片（文件）代码

$uploadDir = './Uploads';

if (!file_exists($uploadDir)) {
    mkdir($uploadDir);
}

$fileName = $_FILES["myFileName"]["name"];
$fileName = iconv('UTF-8', 'GB2312', $fileName);
$uploadPath = $uploadDir . DIRECTORY_SEPARATOR . $fileName;

if (!$out = @fopen($uploadPath, "wb")) {
    echo "error|创建文件失败！";
    exit;
}

if (!empty($_FILES)) {
    if ($_FILES["myFileName"]["error"] || !is_uploaded_file($_FILES["myFileName"]["tmp_name"])) {
        echo "error|移动文件失败！";
        exit;
    }
    if (!$in = @fopen($_FILES["myFileName"]["tmp_name"], "rb")) {
        echo "error|写入文件失败！";
        exit;
    }
}

while ($buff = fread($in, 4096)) {
    fwrite($out, $buff);
}

@fclose($out);
@fclose($in);

echo "";