PHP image upload function, save in a dir and then return save image url

Question

I am trying to upload an image to server using PHP and the save inside a dir, and then returning the image url.

HTML:

Answer 1

This my function, variable $ten_anh is name of file image in html.

function upload_anh($ten_anh){ //$ten_anh la ten tren html vi du "avatar"
if(isset($_FILES[$ten_anh])){
     $errors= array();
     $file_name = $_FILES[$ten_anh]['name'];
     $file_size =$_FILES[$ten_anh]['size'];
     $file_tmp =$_FILES[$ten_anh]['tmp_name'];
     $file_type=$_FILES[$ten_anh]['type'];
     $file_ext=strtolower(end(explode('.',$_FILES[$ten_anh]['name'])));

     $expensions= array("jpeg","jpg","png");

     if(in_array($file_ext,$expensions)=== false){
            $errors[]="Không chấp nhận định dạng ảnh có đuôi này, mời bạn chọn JPEG hoặc PNG.";
     }

     if($file_size > 2097152){
            $errors[]='Kích cỡ file nên là 2 MB';
     }

     if(empty($errors)==true){
            move_uploaded_file($file_tmp,"../images/".$file_name);
            echo "Thành công!!!";
     }
     else{
            print_r($errors);
     }
}

}

Example: - html code:

• call function php: upload_anh('avatar');