170 lines
4.2 KiB
PHP
Executable File
170 lines
4.2 KiB
PHP
Executable File
<?php
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// ====================================== 123
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// Fehleranzeige (DEV)
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ini_set('display_errors', 1);
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error_reporting(E_ALL);
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// ======================================
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// DB-Verbindung
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$con = mysqli_connect("localhost", "FSST", "L9wUNZZ9Qkbt", "FSST");
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mysqli_set_charset($con, "utf8");
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if (!$con) {
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die("DB Fehler: " . mysqli_connect_error());
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}
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// ======================================
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// GET-Parameter
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$categoryID = isset($_GET['category']) ? (int)$_GET['category'] : 0;
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$maxPrice = isset($_GET['maxPrice']) ? (float)$_GET['maxPrice'] : 0;
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?>
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<!DOCTYPE html>
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<html lang="de">
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<head>
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<meta charset="UTF-8">
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<title>Preisvergleich – Demo</title>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<link rel="stylesheet" href="style.css">
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<?php include 'navbar.php'; ?>
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</head>
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<body>
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<h1>💻 Preisvergleich – Beispielanwendung</h1>
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<?php
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// ======================================
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// Kategorien laden
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$categories = mysqli_query($con, "
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SELECT categoryID, name
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FROM categories
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WHERE parentCategoryID IS NOT NULL
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ORDER BY name
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");
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?>
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<form method="get">
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Kategorie:
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<select name="category">
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<option value="0">Alle</option>
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<?php while ($c = mysqli_fetch_assoc($categories)): ?>
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<option value="<?= $c['categoryID'] ?>"
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<?= $categoryID === (int)$c['categoryID'] ? 'selected' : '' ?>>
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<?= htmlspecialchars($c['name']) ?>
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</option>
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<?php endwhile; ?>
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</select>
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Max Preis (€):
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<input type="number" step="1" name="maxPrice" value="<?= htmlspecialchars($maxPrice) ?>">
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<button type="submit">Anzeigen</button>
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</form>
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<?php
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// ======================================
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// Produkte + günstigster Preis
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$sql = "
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SELECT
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p.productID,
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p.model,
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b.name AS brand,
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c.name AS category,
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MIN(o.price + o.shippingCost) AS bestPrice
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FROM products p
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JOIN brands b ON p.brandID = b.brandID
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JOIN categories c ON p.categoryID = c.categoryID
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JOIN offers o ON o.productID = p.productID
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WHERE 1
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";
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$params = [];
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$types = "";
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if ($categoryID > 0) {
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$sql .= " AND p.categoryID = ?";
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$params[] = $categoryID;
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$types .= "i";
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}
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if ($maxPrice > 0) {
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$sql .= " AND (o.price + o.shippingCost) <= ?";
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$params[] = $maxPrice;
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$types .= "d";
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}
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$sql .= " GROUP BY p.productID ORDER BY bestPrice ASC";
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$stmt = mysqli_prepare($con, $sql);
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if ($params) {
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mysqli_stmt_bind_param($stmt, $types, ...$params);
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}
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mysqli_stmt_execute($stmt);
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$result = mysqli_stmt_get_result($stmt);
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// ======================================
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// Ausgabe
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while ($p = mysqli_fetch_assoc($result)):
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?>
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<div class="product">
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<strong><?= htmlspecialchars($p['brand']) ?> <?= htmlspecialchars($p['model']) ?></strong><br>
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Kategorie: <?= htmlspecialchars($p['category']) ?><br>
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💰 Ab <?= number_format($p['bestPrice'], 2, ',', '.') ?> €
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<div class="spec">
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<strong>Specs:</strong><br>
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<?php
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$specs = mysqli_query($con, "
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SELECT a.name, a.unit,
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pa.valueString, pa.valueNumber, pa.valueBool
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FROM productAttributes pa
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JOIN attributes a ON pa.attributeID = a.attributeID
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WHERE pa.productID = {$p['productID']}
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");
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while ($s = mysqli_fetch_assoc($specs)) {
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echo htmlspecialchars($s['name']) . ": ";
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if ($s['valueString'] !== null) echo htmlspecialchars($s['valueString']);
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elseif ($s['valueNumber'] !== null) echo htmlspecialchars($s['valueNumber']) . " " . $s['unit'];
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elseif ($s['valueBool'] !== null) echo $s['valueBool'] ? "Ja" : "Nein";
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echo "<br>";
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}
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?>
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</div>
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<div class="offer">
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<strong>Angebote:</strong><br>
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<?php
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$offers = mysqli_query($con, "
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SELECT s.name, o.price, o.shippingCost
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FROM offers o
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JOIN shops s ON o.shopID = s.shopID
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WHERE o.productID = {$p['productID']}
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ORDER BY o.price ASC
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");
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while ($o = mysqli_fetch_assoc($offers)) {
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$total = $o['price'] + $o['shippingCost'];
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echo htmlspecialchars($o['name']) . ": "
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. number_format($total, 2, ',', '.') . " €<br>";
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}
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?>
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</div>
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</div>
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<?php endwhile; ?>
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</body>
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</html>
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<?php mysqli_close($con); ?>
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