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TEHTAVAT 5-6

lueviesti.php:

<?php

$conn = new mysqli('localhost', 'ROOT', '', 'chat')
or die ('Cannot connect to db');

        $result = $conn->query("select userID, userName from user");

        echo "<html>";
        echo "<body>";
        echo "<form action='lueviesti2.php' method='get'>";
        echo "<select name='userID'>";

        while ($row = $result->fetch_assoc()) {

                unset($id, $name);
                $id = $row['userID'];
                $name = $row['userName'];
                echo "<option value=" . $id . ">" . $name . "</option>";
}

echo "</select>";
echo "<input type='submit'/>";
echo "</form>";

        echo "</body>";
        echo "</html>";

?>
--------------

lueviesti2.php:

<?php
$USER = $_GET["userID"];

echo "<table style='border: solid 1px black;'>";
echo "<tr><th>Message</th><th>Sender</th><th>TO</th></tr>";

class TableRows extends RecursiveIteratorIterator {
    function __construct($it) {
        parent::__construct($it, self::LEAVES_ONLY);
    }

    function current() {
        return "<td style='width:150px;border:1px solid black;'>" . parent::current(). "</td>";
    }

    function beginChildren() {
        echo "<tr>";
    }

    function endChildren() {
        echo "</tr>" . "\n";
    }
}

$servername = "localhost";
$username = "ROOT";
$password = "";
$dbname = "chat";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $stmt = $conn->prepare("SELECT messageData, messageSender, messageUser FROM message, user WHERE message.messageSender=user.userID AND userID='$USER'");
    $stmt->execute();

    // set the resulting array to associative
    $result = $stmt->setFetchMode(PDO::FETCH_ASSOC);
    foreach(new TableRows(new RecursiveArrayIterator($stmt->fetchAll())) as $k=>$v) {
        echo $v;
    }
}
catch(PDOException $e) {
    echo "Error: " . $e->getMessage();
}
$conn = null;
echo "</table>";
?>