Initial commit

2026-06-11 12:30:23 +07:00
commit 2676f3a61c
70 changed files with 9867 additions and 0 deletions
@@ -0,0 +1,76 @@
+<?php
+// core/Database.php
+
+class Database {
+    private static ?Database $instance = null;
+    private PDO $pdo;
+
+    private function __construct() {
+        $dsn = 'mysql:host=' . DB_HOST . ';dbname=' . DB_NAME . ';charset=' . DB_CHARSET;
+        $options = [
+            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            PDO::ATTR_EMULATE_PREPARES   => false,
+            PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8mb4"
+        ];
+        try {
+            $this->pdo = new PDO($dsn, DB_USER, DB_PASS, $options);
+        } catch (PDOException $e) {
+            die(json_encode(['error' => 'Database connection failed: ' . $e->getMessage()]));
+        }
+    }
+
+    public static function getInstance(): Database {
+        if (self::$instance === null) {
+            self::$instance = new Database();
+        }
+        return self::$instance;
+    }
+
+    public function getConnection(): PDO {
+        return $this->pdo;
+    }
+
+    // Shorthand query
+    public function query(string $sql, array $params = []): PDOStatement {
+        $stmt = $this->pdo->prepare($sql);
+        $stmt->execute($params);
+        return $stmt;
+    }
+
+    public function fetchAll(string $sql, array $params = []): array {
+        return $this->query($sql, $params)->fetchAll();
+    }
+
+    public function fetchOne(string $sql, array $params = []): ?array {
+        $row = $this->query($sql, $params)->fetch();
+        return $row ?: null;
+    }
+
+    public function insert(string $table, array $data): int {
+        $cols = implode(', ', array_keys($data));
+        $placeholders = implode(', ', array_fill(0, count($data), '?'));
+        $sql = "INSERT INTO `$table` ($cols) VALUES ($placeholders)";
+        $this->query($sql, array_values($data));
+        return (int)$this->pdo->lastInsertId();
+    }
+
+    public function update(string $table, array $data, string $where, array $whereParams = []): int {
+        $sets = implode(', ', array_map(fn($k) => "`$k` = ?", array_keys($data)));
+        $sql = "UPDATE `$table` SET $sets WHERE $where";
+        $stmt = $this->query($sql, array_merge(array_values($data), $whereParams));
+        return $stmt->rowCount();
+    }
+
+    public function delete(string $table, string $where, array $params = []): int {
+        $stmt = $this->query("DELETE FROM `$table` WHERE $where", $params);
+        return $stmt->rowCount();
+    }
+
+    public function lastInsertId(): string {
+        return $this->pdo->lastInsertId();
+    }
+
+    // Prevent cloning
+    private function __clone() {}
+}