hseq_back_end/app/Http/Controllers/HelperController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class HelperController extends Controller
{


   public function upload_single_photo ($photo, $type)
   {
      $rand = rand(0,999);
      $name = time().$rand.'.'.$type;
      // file_put_contents(public_path().'/uploads/'.$name, file_get_contents($photo));
      return $link = 'uploads/'.$name;
   }

   public function csvToArray ($filename = '', $delimiter = ',')
   {
      if (!file_exists($filename) || !is_readable($filename))
      return false;
      $header = null;
      $data = array();
      if (($handle = fopen($filename, 'r')) !== false)
      {
         while (($row = fgetcsv($handle, 1000, $delimiter)) !== false)
         {
            if (!$header)
            $header = $row;
            else
            $data[] = array_combine($header, $row);
         }
         fclose($handle);
      }
      return ['users' => $data] ;
   }

   public function display_duplicated_emails ($emails)
   {
      $duplicates = array_diff_key($emails, array_unique($emails));
      if(!empty($duplicates)){
         $error = [];
         foreach ($duplicates as $key => $duplicate) {
            $error[] = $duplicate ." has already duplicate in json";
         }
         return response()->json(compact('error'),400);
      }
   }





} //class