Untitled

<?php
if(isset($_GET['delete_id'])) {
  $id=$_GET['delete_id'];
  $queryUserDel= "DELETE FROM $table WHERE id=$id;"
  $mysqlqueryUserDel = mysqli_query($link, $queryUserDel);

}

?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>DB</title>
    <style>
        table, tr, th, td {
            border: 1px solid green;
            border-collapse: collapse;
        }
    </style>
</head>
<body>

    <table>
        <tr>
            <th>id</th>
            <th>name</th>
            <th>age</th>
            <th>salary</th>
        </tr>
<?php

    $host = 'localhost';
    $user = 'root';
    $pass = '123QWErty';
    $db_name ='test_db' ;
    $table = '`people`';

    $link = mysqli_connect($host, $user, $pass, $db_name) or die (mysqli_error($link));
    mysqli_set_charset($connect, 'utf8');

    $query = " SELECT * FROM $table";

    $mysqlquery = mysqli_query($link, $query);


    while ($result = mysqli_fetch_array($mysqlquery, MYSQLI_ASSOC)) {


    echo "<tr><td>{$result['id']}</td><td>{$result['name']}</td><td>{$result['age']}</td><td>{$result['salary']}</td><td><a href="?delete_id={$result['id']}">Удалить</a></td></tr>";

    }

    ?>
        </table>

    </body>

</html>