ThinkPHP uploads images smoothly, but the database field content is NULL

The image is successfully uploaded in ThinkPHP, but the database field content is NULLThinkPHP, but the database field content is NULL & nbsp; Public & nbsp; function & nbsp; upload () {& nbsp; the image is successfully uploaded in impo ThinkPHP, but the database field content is NULL.
The image is successfully uploaded in ThinkPHP, but the database field content is NULL.

Public function upload (){
Import ('org. Net. uploadfile ');
$ Upload = new UploadFile (); // instantiate the upload class
$ Upload-> maxSize = 3145728; // sets the attachment upload size.
$ Upload-> allowExts = array ('jpg ', 'GIF', 'PNG', 'jpeg '); // you can specify the attachment upload type.
$ Upload-> savePath = './Public/Uploads/'; // sets the attachment upload Directory
If (! $ Upload-> upload () {// upload error message
$ This-> error ($ upload-> getErrorMsg ());
} Else {// the uploaded file is successfully obtained.
$ Info = $ upload-> getUploadFileInfo ();
}
// Save the form data, including the attachment data
$ User = M ("Photo"); // instantiate the User object
$ User-> create (); // create a data object
$ User-> photo = $ info [0] ['tuian']; // Save the uploaded photo and assemble it as needed
$ User-> add (); // write User data to the database
$ This-> success ('Data Is saved successfully! ');
}

How to rename the uploaded image and insert it into the database? upload the image database thinkphp and share it:
------ Solution --------------------
By
"Savepath" => "./Public/Uploads /"
"Savename" => "444.jpg"
Yes
$ User-> photo = substr ($ info [0] ['savepath'], 1). $ info [0] ['savename'];