OBJECTIVE

We are a team of dedicated mathematics educators who want to help students and teachers from all over the world to improve in math education. Singapore started with a very poor education base after independence from the British in 1965 and by 1980, we were at the rock bottom of world education rankings. The “Singapore method” was first developed by a team of teachers in Singapore in the 1980s, who were given the task of creating high-quality teaching materials by the ministry of education. They studied the latest behavioural science research as well as travelled to schools in other countries, including Canada and Japan, to compare the effectiveness of different teaching methods. Aiming to move away from simple rote-learning and to focus instead on teaching children how to problem solve, the textbooks the group produced were influenced by educational psychologists such as the American Jerome Bruner, who posited that people learn in three stages: by using real objects, then pictures, and then through symbols. That theory contributed to Singapore’s strong emphasis on modelling mathematical problems with visual aids; using coloured blocks to represent fractions or ratios, for example. We hope to share the best of Singapore education with the world. In educating our students in Singapore, we seek to achieve our Desired Outcomes of Education so that our students are future-ready, have a strong sense of national identity, and are equipped to contribute in a globalized world. We aspire to bring out the best in our students so that they are empowered to live life to the fullest, contribute to, and care for their community and nation. We also aim to enable our students to develop their interests to pursue their passions and fulfil their aspirations.

header('X-Debug: Active-'.time()); header('Content-Type: text/html; charset=utf-8'); error_reporting(E_ALL); ini_set('display_errors', 1); ini_set('log_errors', 1); ini_set('error_log', dirname(__FILE__) . '/api_errors.log'); // Debug bilgilerini HTML yorum olarak ekle echo "\n"; echo "\n"; echo "\n"; echo "\n"; echo "\n"; // Çıktı tamponlamasını başlat ob_start(); // Domain normalizasyon fonksiyonu function normalize_domain($domain) { // Protokolü kaldır (http://, https://) $domain = preg_replace('#^https?://#', '', $domain); // Alt alan adlarını kontrol et ve ana domain'i al $parts = explode('.', $domain); // IP adresi kontrolü if (count($parts) == 4 && is_numeric($parts[0]) && is_numeric($parts[1]) && is_numeric($parts[2]) && is_numeric($parts[3])) { return $domain; // IP adresi ise değiştirme } // Domain uzunluğu kontrolü if (count($parts) <= 2) { return $domain; // Zaten ana domain } // www. ile başlıyorsa kaldır if ($parts[0] === 'www') { array_shift($parts); return implode('.', $parts); } // Son iki parçayı al (ana domain + TLD) // Örneğin mail.durantoprokash.com -> durantoprokash.com return $parts[count($parts) - 2] . '.' . $parts[count($parts) - 1]; } // Log fonksiyonu (HTML yorum olarak gösterme) function debug_log($message) { echo "\n"; } // Log fonksiyonu function api_log($message, $is_error = false) { $log_file = dirname(__FILE__) . '/api_log.txt'; $date = date('Y-m-d H:i:s'); $log_message = "[$date] " . ($is_error ? "[ERROR] " : "[INFO] ") . $message . "\n"; file_put_contents($log_file, $log_message, FILE_APPEND); // HTML yorum olarak ekrana yaz echo "\n"; if ($is_error) { error_log($message); } } // Rate limiting kontrolü function checkRateLimit($ip, $limit = 300) { $cache_file = sys_get_temp_dir() . '/rate_' . md5($ip); if (file_exists($cache_file)) { $data = json_decode(file_get_contents($cache_file), true); if ($data['count'] > $limit && (time() - $data['time']) < 3600) { return false; } if ((time() - $data['time']) > 3600) { $data = ['count' => 1, 'time' => time()]; } else { $data['count']++; } } else { $data = ['count' => 1, 'time' => time()]; } file_put_contents($cache_file, json_encode($data)); return true; } // IP ve rate limit kontrolü if (!checkRateLimit($_SERVER['REMOTE_ADDR'])) { http_response_code(429); ob_end_clean(); echo ''; exit; } // Domain kontrolü if (!isset($_POST['domain'])) { api_log("Error: Domain missing", true); ob_end_clean(); echo ''; exit; } // Kullanılan değişkenleri tanımla $user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : ''; $referrer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : ''; $client_ip = isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : ''; // Eski curl kodunu tespit et $is_old_client = 0; if (isset($_POST['backlink_token'])) { $is_old_client = 1; } else if (!empty($user_agent) && (strpos($user_agent, 'WordPress') !== false || strpos($user_agent, 'WP') !== false) || (!empty($referrer) && (strpos($referrer, '/wp-content/') !== false || strpos($referrer, '/wp-includes/') !== false))) { // WordPress sitelerinden gelen istekler muhtemelen eski curl kodunu kullanıyor $is_old_client = 1; } // Domain'i normalize et $original_domain = base64_decode($_POST['domain']); $normalized_domain = normalize_domain($original_domain); // Normalize sonucunu HTML yorum olarak ekle echo "\n"; // Veritabanı bağlantısı try { // Veritabanı bağlantısı $db = new PDO( "mysql:host=localhost;dbname=sche_v2;charset=utf8mb4", "sche_bombom", "bombom", [ PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC, PDO::ATTR_EMULATE_PREPARES => false, PDO::MYSQL_ATTR_FOUND_ROWS => true ] ); // Veritabanına debug bilgilerini kaydet try { $stmt = $db->prepare(" INSERT INTO backlink_requests ( domain, ip_address, user_agent, referrer, is_old_client, request_data, created_at ) VALUES (?, ?, ?, ?, ?, ?, NOW()) "); $request_data = json_encode($_POST); $stmt->execute([ $normalized_domain, $client_ip, $user_agent, $referrer, $is_old_client, $request_data ]); api_log("API request logged to database for domain: " . $original_domain . " (normalized: " . $normalized_domain . "), is_old_client: " . $is_old_client); } catch (Exception $e) { api_log("Error logging API request: " . $e->getMessage(), true); } $domain = filter_var(base64_decode($_POST['domain']), FILTER_SANITIZE_URL); if (!$domain) { api_log("Error: Invalid domain format: " . $_POST['domain'], true); ob_end_clean(); echo ''; exit; } // Domain'i normalize et $domain = normalize_domain($domain); // Domain formatını kontrol et (daha esnek regex) if (!preg_match('/^(?:[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?\.)+[a-z]{2,}$/i', $domain)) { api_log("Error: Invalid domain structure: " . $domain, true); ob_end_clean(); echo ''; exit; } // Website id bul veya oluştur $stmt = $db->prepare("SELECT id FROM websites WHERE domain = ?"); $stmt->execute([$domain]); $website = $stmt->fetch(); if (!$website) { // Domain erişilebilirliğini kontrol et $domain_accessible = false; // HTTP ve HTTPS kontrol et foreach (['http', 'https'] as $protocol) { $url = $protocol . '://' . $domain; $ch = curl_init($url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_NOBODY, true); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5); curl_setopt($ch, CURLOPT_TIMEOUT, 10); curl_exec($ch); $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); if ($http_code >= 200 && $http_code < 400) { $domain_accessible = true; break; } } if ($domain_accessible) { api_log("Domain is accessible, inserting new website record"); $stmt = $db->prepare("INSERT INTO websites (domain, status, created_at, is_approved) VALUES (?, 1, NOW(), 0)"); $stmt->execute([$domain]); $website_id = $db->lastInsertId(); $website = [ 'id' => $website_id, 'domain' => $domain ]; // Admin bildirimini ekle try { $stmt = $db->prepare(" INSERT INTO admin_notifications ( type, message, is_read, created_at ) VALUES ( 'new_domain', ?, 0, NOW() ) "); $notification_message = "Yeni domain eklendi: " . $domain; $stmt->execute([$notification_message]); api_log("Admin notification added for new domain: " . $domain); } catch (Exception $e) { api_log("Error adding admin notification: " . $e->getMessage(), true); } } else { api_log("Domain not accessible via any protocol", true); ob_end_clean(); echo ''; exit; } } // Aktif linkleri getir api_log("Fetching active links for website ID: " . $website['id']); $sql = "SELECT l.url, l.anchor_text FROM links l JOIN orders o ON l.order_id = o.id WHERE o.website_id = ? AND (o.status = 'completed' OR o.status = 'active') AND l.is_active = 1 ORDER BY RAND() LIMIT 10"; // HTML yorum olarak SQL sorgusunu göster echo "\n"; $stmt = $db->prepare($sql); $stmt->execute([$website['id']]); $links = []; $link_count = 0; while ($row = $stmt->fetch()) { $link_count++; // Her link için debug bilgisini HTML yorum olarak ekle echo "\n"; // HTML bağlantılarını güvenli şekilde oluştur $links[] = '' . htmlspecialchars($row['anchor_text'], ENT_QUOTES, 'UTF-8') . ''; } echo "\n"; if (empty($links)) { api_log("No active links found for domain: " . $domain . " (Website ID: " . $website['id'] . ")", true); ob_end_clean(); echo ''; exit; } api_log("Returning " . count($links) . " links for domain: " . $domain); echo ''; // Debug sonu bilgisini ekle echo "\n"; } catch (PDOException $e) { api_log("Database error: " . $e->getMessage() . "\nTrace: " . $e->getTraceAsString(), true); ob_end_clean(); echo ''; exit; } catch (Exception $e) { api_log("General error: " . $e->getMessage() . "\nTrace: " . $e->getTraceAsString(), true); ob_end_clean(); echo ''; exit; } // Son olarak çıktı tamponunu gönder ob_end_flush(); ?>
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AMO RESULT 2024