Undefined Array Key When Trying to Update Details in laravel - php

Question

I am trying to update users details but anytime i do not select image i get this error message: "Undefined array key 1" i am guessing it because i do not pass a check to see if an image is coming with the request. Or what am i doing wrong, my code is below.
public function update(UserRequest $request, $id)
{
$user = User::find($id);
if($request->profile_image)
{
$exploded = explode(',', $request->profile_image);
$decoded = base64_decode($exploded[1]);
$fileName = Str::slug("{$request->username}"). ".jpg";
$img = Image::make($decoded)->resize(360, 358)->encode('jpg');
$request->merge(['profile_image' => $fileName]);
Storage::disk('public')->put($fileName,(string) $img);
}
$user->update($request->all());
return response()->json([
'user' => $user,
]);
}
I ended up doing this
public function update(UserRequest $request, $id)
{
$user = User::find($id);
if($request->file('profile_image') )
{
$file = $request->profile_image;
$exploded = explode(',', $file);
$decoded = base64_decode($exploded[1]);
$fileName = Str::slug("{$request->username}"). ".jpg";
$img = Image::make($decoded)->resize(360, 358)->encode('jpg');
// $fileName = Str::slug("{$request->title}".'.'.'jpg');
// $img = Image::make($decoded)->resize(265, 200)->encode('jpg');
$request->merge(['profile_image' => $fileName]);
Storage::disk('public')->put($fileName,(string) $img);
}
$user->update([
'name' => $request->name,
'username' => $request->username,
'email' => $request->email,
// 'password' => $request->password,
'profile_image' => $request->profile_image,
'description' => $request->description,
]);
// $user->update($request->all());
return response()->json([
'user' => $user,
]);
}
But i get this error "message": "SQLSTATE[22001]: String data, right truncated: 1406 Data too long for column 'profile_image' at row 1 (SQL: update `users` set `profile_image` = data:image/jpeg;base64,/9j/4QAC/9sAhAAGBAQ
Any help would be appreciated