= ? AND mt.attended = 1 AND mt.wore_color = 0
GROUP BY u.username
ORDER BY penalty_count DESC
";
$stmt = mysqli_prepare($conn, $sql_penalties);
// Überprüfen, ob das Statement erfolgreich vorbereitet wurde
if ($stmt === false) {
die("Fehler bei der SQL-Abfrage: " . mysqli_error($conn));
}
mysqli_stmt_bind_param($stmt, "s", $last_reset_date);
mysqli_stmt_execute($stmt);
$result = mysqli_stmt_get_result($stmt);
while ($row = mysqli_fetch_assoc($result)) {
$penalties_data[] = $row;
$total_penalties += $row['penalty_count'];
$total_due += $row['penalty_count'] * $penalty_amount;
}
mysqli_stmt_close($stmt);
// --- 2. Gesamt-Statistiken ---
// Statistik 1: Häufigkeit der gewählten Farben
$color_stats = [];
$sql_colors = "
SELECT
c.name,
c.hex_code,
COUNT(m.id) AS meeting_count
FROM meetings m
JOIN colors c ON m.color_id = c.id
GROUP BY c.name, c.hex_code
ORDER BY meeting_count DESC
";
$result = mysqli_query($conn, $sql_colors);
while ($row = mysqli_fetch_assoc($result)) {
$color_stats[] = $row;
}
// Statistik 2: Teilnahmequote pro Benutzer
$participation_stats = [];
$sql_participation = "
SELECT
u.username,
COUNT(mt.user_id) AS total_attendance
FROM meeting_teilnehmer mt
JOIN users u ON mt.user_id = u.id
WHERE mt.attended = 1
GROUP BY u.username
ORDER BY total_attendance DESC
";
$result = mysqli_query($conn, $sql_participation);
while ($row = mysqli_fetch_assoc($result)) {
$participation_stats[] = $row;
}
// Header einbinden
require_once 'inc/header.php';
?>