Mini Shell

<?php
include '../db/database.php';
$user_id = $_GET['user_id'];
 
foreach ($user_id as $id) {
   
    //delete user   
  $sql1 = "DELETE FROM users_dg WHERE user_id ='$id'";
  $result1 = mysqli_query($link2, $sql1);
  
   //delete เกรด
  $sql2 = "DELETE FROM grade WHERE grade_student_id ='$id'";
  $result2 = mysqli_query($link2, $sql2);        
}

if (($result1) or ($result2)) {
    header('Content-Type: application/json');
    echo json_encode(array('status' => 'success', 'message' => 'ลบข้อมูลเรียบร้อยแล้ว'));
} else {
    header('Content-Type: application/json');
    $errors = "เกิดข้อผิดพลาดในการลบ กรุณาลองใหม่ " . mysqli_error($link);
    echo json_encode(array('status' => 'danger', 'message' => $errors));
}