Untitled

<!DOCTYPE html>
<html>
<head>
<style>
table, th, td {
    border: 1px solid black;
}
</style>

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "tharwa";

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

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";

?>
</head>
<body>

<p><b>Create Table</b></p>
<form action="welcome.php" method="post">
<input type="submit" name="createtbl" value = "Create">
</form>

<p><b>Populate Table</b></p>
<form action="welcome.php" method="post">
<input type="submit" name="popultbl" value = "Populate">
</form>

<p><b>Drop Table</b></p>
<form action="welcome.php" method="post">
<input type="submit" name="droptbl" value = "Drop">
</form>

<p><b>Show Table</b></p>
<form action="welcome.php" method="post">
<input type="submit" name="showtbl" value = "Show">
</form>

<p>Table: </p>

<?php
$tblresults = "f ";
if($_SERVER['REQUEST_METHOD'] == "POST" and isset($_POST['createtbl']))
    {
        createtable();

    }elseif($_SERVER['REQUEST_METHOD'] == "POST" and isset($_POST['popultbl']))
    {
        populatetable();

    }elseif($_SERVER['REQUEST_METHOD'] == "POST" and isset($_POST['droptbl']))
    {
        droptable();

    }elseif($_SERVER['REQUEST_METHOD'] == "POST" and isset($_POST['showtbl']))
    {
        showtable();
    }

function showtable() {
    $sql = "SELECT * FROM hotelrooms";
    global $conn;
    $result = $conn->query($sql);
    if ($result->num_rows > 0) {
        echo "<table><tr><th>Room Number</th><th>Room Availability</th></tr>";
        // output data of each row
        while($row = $result->fetch_assoc()) {
            echo "<tr><td>".$row["roomnmb"]."</td><td>".$row["roomavb"]."</td></tr>";
        }
        echo "</table>";
    } else {
        echo "0 results";
    }
}

function createtable() {
    // sql to create table
     $sql = "CREATE TABLE hotelrooms (
     roomnmb Int(10) NOT NULL PRIMARY KEY,
     roomavb Varchar(30) NOT NULL
     )";
     global $conn;
     if ($conn->query($sql) === TRUE) {
         echo "Table hotelrooms created successfully";
     } else {
         echo "Error creating table: " . $conn->error;
     }
 }
 function droptable(){
     $sql = "DROP TABLE hotelrooms";
     global $conn;
     if ($conn->query($sql) === TRUE) {
        echo "Table hotelrooms dropped successfully";
    } else {
        echo "Error dropping table: " . $conn->error;
    }
}

function populatetable () {
    $sql = "INSERT INTO hotelrooms (roomnmb, roomavb)
    VALUES ('301', 'Available');";
    $sql .= "INSERT INTO hotelrooms (roomnmb, roomavb)
    VALUES ('302', 'Not Available');";
    $sql .= "INSERT INTO hotelrooms (roomnmb, roomavb)
    VALUES ('303', 'Available');";

     global $conn;
     if ($conn->multi_query($sql) === TRUE) {
        echo "Table hotelrooms populated successfully";
    } else {
        echo "Error populating table: " . $conn->error;
    }
}
?>

</body>

<?php
$conn->close();
?>
</html>