PHP File upload and overwrite file with same name

Question

I am making an application that allows users to upload a file in a directory via PHP.

I am having problems because it dose not allow me to overwrite files with the s

Answer 1

if (file_exists("documenti/$fileName"))
 { 
 unlink("documenti/$fileName");

 echo "Last Uploaded File has been removed from uploads folder
back to uploadform agian and upload your file
";// now your file which uploaded before was deleted from uploads folder you can open it and check if it removed or not , so no you should go back to uploadform again and import your file which will uploaded correctly 

echo "


Back to upform
";

 }