我的按钮出了什么问题。你能帮我解决这个问题吗？

Here's my php file.

这是我的php文件。

<?php
 //Getting the requested id
$id = $_GET['id'];
 //Importing database
require_once 'include/Config.php';
 //Creating sql query with where clause to get an specific student
 $sql = "INSERT INTO bus_one (name,address,grade_level,pick_up,dismiss)     SELECT name,address,grade_level,pick_up,dismiss FROM students";
 //getting result 
$r = mysqli_query($con,$sql);
 //pushing result to an array
$result = array();
$row = mysqli_fetch_array($r);
array_push($result,array(
"id"=>$row['id'],
"name"=>$row['name'],
"add"=>$row['address'],
"grad"=>$row['grade_level'],
"pick"=>$row['pick_up'],
"dis"=>$row['dismiss']
));

//displaying in json format
echo json_encode(array('result'=>$result));
mysqli_close($con);
?>
<?php
 //Ge