Laravel 5 | File upload - If file exists add number to filename - laravel

Question

I have problem with file upload. Now I have something like this (part of Controller):
if($request->has('photos')) {
foreach ($request->photos as $photo) {
$filename = $photo->getClientOriginalName();
$tmp_name = $filename;
if ($pos = strrpos($filename, '.')) {
$name = substr($filename, 0, $pos);
$ext = substr($filename, $pos);
} else {
$name = $filename;
}
$uniq_no = 0;
while (file_exists($filename)) {
$tmp_name = $name .'_'. $uniq_no . $ext;
$uniq_no++;
}
$photo->storeAs('public/photos/',$tmp_name);
Photo::create([
'page_id' => $page->id,
'filename' => $tmp_name
]);
}
}
but saves to the database without adding a unique number: filename_0, filename_1 etc. It just saves the value of $tmp_name.
What am I doing wrong?

Answer 1

I did something like this:
if($request->has('photos')) {
foreach ($request->photos as $photo) {
$file = $photo->getClientOriginalName();
$filename = pathinfo($file, PATHINFO_FILENAME).'_'.Str::random(6);
$extension = pathinfo($file, PATHINFO_EXTENSION);
$fullfilename = $filename .'.'. $extension;
$photo->storeAs('public/photos/',$fullfilename);
Photo::create([
'page_id' => $page->id,
'filename' => $fullfilename
]);
}
}