IF YOU WANT TO RUN PROJECT LOCALLY THEN DO CHANGES IN FILES AND DOWNLOAD DATABASE FILE. YOU NEED TO DOWNLOAD XAMPP OR WAMP SERVER
$con = mysqli_connect("localhost","root","","jagdish petroleum"); //from this to below line
$con = mysqli_connect("localhost","YOUR USER NAME","YOUR PASSWORD","jagdish petroleum");
1. DOWNLOAD jagdish_petroleum.sql FILE
2. CREATE 'jagdish petroleum' DATABASE // EXECT NAME NEEDED
3. IMPORT .sql FILE TO YOUR MYSQL DATABASE USING PhpMyAdmin
ENTER YOUR LOCAL MACHINE CREDENTIALS AND ITS WORK COMPLETELY.