Laravel uploading file with different charset - php

Question

I am trying to upload files with Persian name like نام فایل but the file uploads and stores with unknown chars name like تقسیم_وظای٠it really stuck me I don't know what to do.
This is the controller code for uploading the file:
$files = Input::file('files');
$errors = "";
$file_data = array();
if(Input::hasFile('files'))
{
foreach($files as $file)
{
// validating each file.
$rules = array('file' => 'required'); //'required|mimes:png,gif,jpeg,txt,pdf,doc'
$validator = Validator::make(
[
'file' => $file,
'extension' => Str::lower($file->getClientOriginalExtension())
],
[
'file' => 'required',
'extension' => 'required|in:jpg,jpeg,bmp,png,pdf,doc,docx,xls,xlsx,zip'
]
);
if($validator->passes())
{
// path is root/uploads
$destinationPath = 'uploads/docs/';
$filename = $file->getClientOriginalName();
$temp = explode(".", $filename);
$extension = end($temp);
$lastFileId = $object_id;
$lastFileId++;
$filename = $temp[0].'_'.$object_id.'.'.$extension;
$upload_success = $file->move($destinationPath, $filename);
if($upload_success)
{
$data = array(
'file_name' => $filename,
'meeting_id' => $object_id,
'user_id' => Auth::user()->id
);
//call the model function to insert the data into upload table.
meetingModel::uploadFiles($data);
}
else
{
// redirect back with errors.
return Redirect::back()->withErrors($validator);
}
}
else
{
// redirect back with errors.
return Redirect::back()->withErrors($validator);
}
}
}