Rename an uploaded file with PHP but keep the extension

Question

I\'m using PHP to upload an image from a form to the server and want to rename the image lastname_firstname.[original extension]. I currently have:

move_upl         


        

Answer 1

You can try:

move_uploaded_file($_FILES["picture"]["tmp_name"], "peopleimages/" . "$_POST[lastname]" . '_' . "$_POST[firstname]".".".end(explode(".", $_FILES["picture"]["tmp_name"])))

or as Niels Bom suggested

$filename=$_FILES["picture"]["tmp_name"];
$extension=end(explode(".", $filename));
$newfilename="$_POST[lastname]" . '_' . "$_POST[firstname]".".".$extension;
move_uploaded_file($filename, "peopleimages/" .$newfilename);