<?php 
include('includes/config/config.php');
error_reporting(E_ERROR | E_PARSE);
      $sql="select * from checkup_form where checkup_date='0000-00-00' ";
      		
          $date1='2019-01-01';
        //  $date1=strtotime($date);
        //echo $sql;
      		$result = mysqli_query($conn,$sql);
      		echo mysqli_num_rows($result);
      		while($row=mysqli_fetch_array($result)){
      			
      			$date1=date('Y-m-d', strtotime($date1. ' + 1 day'));
      		// echo "shuabh1". $date1;
      			$up_query="update checkup_form set checkup_date='$date1'  where checkup_id='".$row['checkup_id']."' ";
      			echo $up_query;
      			$result1 = @mysqli_query($conn,$up_query);
      			
      			
      		}
      		//echo "shuabh";

?>