<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Mozi adatbázis megoldások</title>
<style>
body {
font-family: Arial, sans-serif;
margin: 0;
padding: 0;
background-color: #f4f4f4;
color: #333;
}
.container {
width: 80%;
margin: 0 auto;
padding: 20px;
background-color: #fff;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
h1 {
text-align: center;
color: #444;
}
.result {
margin: 20px 0;
padding: 10px;
background-color: #e7f3fe;
border-left: 6px solid #2196F3;
}
.result.success {
background-color: #d4edda;
border-left: 6px solid #28a745;
}
.result.error {
background-color: #f8d7da;
border-left: 6px solid #dc3545;
}
table {
width: 100%;
border-collapse: collapse;
margin: 20px 0;
}
table, th, td {
border: 1px solid #ddd;
}
th, td {
padding: 12px;
text-align: left;
}
th {
background-color: #f2f2f2;
}
tr:nth-child(even) {
background-color: #f9f9f9;
}
tr:hover {
background-color: #f1f1f1;
}
</style>
</head>
<body>
<?php
require_once('config.php');
function executeQuery($conn, $query, $onlyValues = false) {
$result = $conn->query($query);
if ($result->num_rows > 0) {
$output = "";
while($row = $result->fetch_assoc()) {
foreach ($row as $key => $value) {
if ($onlyValues) {
$output .= "$value<br>";
} else {
$output .= "$key: $value<br>";
}
}
}
return $output;
} else {
return "0 results";
}
}
function executeQueryAsTable($conn, $query) {
$result = $conn->query($query);
if ($result->num_rows > 0) {
$output = "<table><tr>";
// Fetch the headers
$headers = array_keys($result->fetch_assoc());
foreach ($headers as $header) {
$output .= "<th>$header</th>";
}
$output .= "</tr>";
// Reset result pointer and fetch data
$result->data_seek(0);
while($row = $result->fetch_assoc()) {
$output .= "<tr>";
foreach ($row as $value) {
$output .= "<td>$value</td>";
}
$output .= "</tr>";
}
$output .= "</table>";
return $output;
} else {
return "0 results";
}
}
function executeUpdate($conn, $query) {
if ($conn->query($query) === TRUE) {
return true;
} else {
return false;
}
}
function executeInsert($conn, $query) {
if ($conn->query($query) === TRUE) {
return true;
} else {
return false;
}
}
$feladat15 = "SELECT COUNT(id) as vetitesek_szama FROM vetites WHERE kezdes = '20:00'";
echo "<div class='result'>Vetítések száma 20:00 órakor: " . executeQuery($conn, $feladat15, true) . "</div>";
$feladat16 = "SELECT COUNT(jegy.id) as 'jegy_db', vendeg.nev as 'vendeg_nev' FROM jegy INNER JOIN vendeg on jegy.vendegId = vendeg.id GROUP BY (jegy.vendegId) ORDER BY jegy_db DESC LIMIT 5;";
echo "16.feladat: " . executeQueryAsTable($conn, $feladat16) . "<br>";
$updateQuery = "UPDATE film SET cim = 'Csillagok között' WHERE cim = 'Interstellar'";
if (executeUpdate($conn, $updateQuery)) {
echo "<div class='result'>17. feladat: a film címe sikeresen átírva <br></div>";
} else {
echo "Hiba a film címének átírásakor <br>";
}
$insertQuery = "INSERT INTO filmtipus (nev) SELECT 'Animációs' WHERE NOT EXISTS (SELECT 1 FROM filmtipus WHERE nev = 'Animációs')";
if (executeInsert($conn, $insertQuery)) {
echo "<div class='result'>18. feladat: Az új filmtípus hozzá lett adva <br></div>";
} else {
echo "Hiba a hozzáadáskor <br>";
}
$feladat19 = "SELECT nev as 'nev', count(jegy.id) as 'teljes_aru_jegy_db' FROM vendeg INNER JOIN jegy on vendeg.id = jegy.vendegId WHERE nev = 'Fodor András' and kedvezmeny = 0;";
echo "19.feladat: " . executeQueryAsTable($conn, $feladat19) . "<br>";
$feladat20 = "SELECT film.cim as 'film_neve', COUNT(jegy.id) as 'jegy_darabszam', SUM(film.jegyar - film.jegyar * jegy.kedvezmeny / 100) as 'teljes_bevetel'
FROM film
INNER JOIN vetites on film.id = vetites.filmId
INNER JOIN jegy on vetites.id = jegy.vetitesId
GROUP BY film.cim
ORDER BY teljes_bevetel DESC LIMIT 1;";
echo "20.feladat: " . executeQueryAsTable($conn, $feladat20) . "<br>";
$conn->close();
?>
</body>
</html>