Untitled

<html>
<head>
<style>
table {
    font-family: arial, sans-serif;
    border-collapse: collapse;
    width: 100%;
}

td, th {
    border: 1px solid #dddddd;
    text-align: left;
    padding: 8px;
}

tr:nth-child(even) {
    background-color: #dddddd;
}
</style>
</head>
<body>

    <?php
        echo "<table style='width:100%'>";
        $servername = "localhost";
        $username = "****";
        $password = "****";
        $db = "Ragnarok";
        $tables = array ("userinfo");
        $categories = array ("id", "username");

        // Create connection
        $conn = new mysqli($servername, $username, $password, $db);

        // Check connection
        if ($conn->connect_error) {
            die("Connection failed: " . $conn->connect_error);
        }
        foreach ($tables as $tbl ) {
            $sql = "SELECT id, username, password, serial FROM ". $tbl;
            echo "<tr><th>". $tbl. "</th>";
            foreach ($categories as $cat) {
                echo "<th>".$cat."</th>";
            }
            echo "</tr>";

            $result = $conn->query($sql);

            if ($result->num_rows > 0) {
                while ($row = $result->fetch_assoc()){
                    foreach ($row as $index=>$value) {
                        foreach ($categories as $cat) {
                            if ($index !== "id") {
                                echo "<tr>";
                            }
                            $id;
                            $usr;
                            if ($row == "id")
                                $id = $value;
                            if ($row == "username")
                                $usr = $value;

                            if ($index ==  $cat) {
                                echo "<td>$id</td>";
                                echo "<td>$usr</td>";
                            }
                            echo "</tr>";
                        }
                    }
                }
            }
            else {
                echo "0 result";
            }
        }
        $conn->close();
    echo "</table>";
    ?>
</html>