96 lines
3.2 KiB
PHP
96 lines
3.2 KiB
PHP
<?php
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include_once("db.inc.php");
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$selected_region = $_GET['region'] ?? 'Caribbean';
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// Regionen für Dropdown aus Tabelle regions holen
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$stmt_regions = $pdo->query("SELECT region_name FROM regions ORDER BY region_name");
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$regions = $stmt_regions->fetchAll(PDO::FETCH_COLUMN);
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$sql = "
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SELECT
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country_name,
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area,
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AVG(gdp) as avg_gdp,
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AVG(population) as avg_population,
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continent
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FROM nation
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WHERE region = :region
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GROUP BY country_name, area, continent
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ORDER BY country_name
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";
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$stmt = $pdo->prepare($sql);
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$stmt->execute(['region' => $selected_region]);
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$countries = $stmt->fetchAll(PDO::FETCH_ASSOC);
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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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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Länderdaten nach Regionen</title>
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<style>
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body { font-family: Arial, sans-serif; margin: 40px; }
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h1 { color: #333; }
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h2 { color: #666; margin-top: 30px; }
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form { margin: 20px 0; padding: 20px; background: #f5f5f5; border-radius: 8px; }
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select, button { padding: 8px 12px; font-size: 16px; }
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table { border-collapse: collapse; width: 100%; margin-top: 20px; }
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th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
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th { background-color: #4CAF50; color: white; }
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tr:nth-child(even) { background-color: #f2f2f2; }
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.number { text-align: right; }
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</style>
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</head>
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<body>
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<h1>Länderdaten nach Regionen</h1>
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<p>Bitte wählen Sie die Region aus, deren Länder angezeigt werden sollen.</p>
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<form method="GET" action="">
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<h2>Region |
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<select name="region" onchange="this.form.submit()">
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<?php foreach ($regions as $region): ?>
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<option value="<?= htmlspecialchars($region) ?>"
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<?= $region == $selected_region ? 'selected' : '' ?>>
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<?= htmlspecialchars($region) ?>
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</option>
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<?php endforeach; ?>
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</select>
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</h2>
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<button type="submit">anzeigen</button>
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</form>
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<?php if (!empty($countries)): ?>
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<table>
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<thead>
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<tr>
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<th>Land</th>
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<th class="number">Fläche</th>
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<th class="number">AVG BIP</th>
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<th class="number">AVG Bevälkerung</th>
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<th>Kontinent</th>
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</tr>
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</thead>
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<tbody>
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<?php foreach ($countries as $country): ?>
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<tr>
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<td><?= htmlspecialchars($country['country_name']) ?></td>
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<td class="number"><?= number_format($country['area'], 2) ?></td>
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<td class="number"><?= number_format($country['avg_gdp'], 4) ?></td>
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<td class="number"><?= number_format($country['avg_population'], 4) ?></td>
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<td><?= htmlspecialchars($country['continent']) ?></td>
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</tr>
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<?php endforeach; ?>
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</tbody>
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</table>
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<?php elseif ($_SERVER['REQUEST_METHOD'] === 'GET'): ?>
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<p>Keine Daten für die ausgewählte Region gefunden.</p>
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<?php endif; ?>
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</body>
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</html>
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