文件上传 - PHP 如果未选择图像，如何使用旧图像 - file upload - PHP How to use old image if no image selected

file upload - PHP How to use old image if no image selected

如果没有选择图像，如何使用旧图像？

当有人更新他的个人资料但不选择要更新的图像时，这是一个个人资料页面，那么旧图像应该保留在那里。

应该像这个 if-else 语句还是会有其他方法？

    //check if file is selected.
    if (empty($_FILES['profilepic']))
    {
                 //if file selected this code should run
         $fileselected="file selected";
    }
    else
    {
                //this executes if file not selected
        $fileselected="No File Has Been Selected";
    }
echo $fileselected;

应该如何编码？？

感谢@Lion

if($_FILES["profilepic"]["error"])
{//if the file is not selected} 
else {//if the file is selected}

几乎对我有用.. :)

if(empty($_FILES['image']['name']))
{
    $image=$row['image'];
    //upload from root folder//
    $upload=$_SESSION['KCFINDER']['uploadURL'] = '/images'.$image;
    upload script
} else {
    normal upload script
}