127 lines
2.8 KiB
PHP
127 lines
2.8 KiB
PHP
<?php
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/**
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* Database Configuration
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* Production fitness tracking app database connection
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*/
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class Database {
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private static $instance = null;
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private $connection;
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private $db_host = 'localhost';
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private $db_user = 'fitness_app_user';
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private $db_pass = 'your_secure_password_here';
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private $db_name = 'fitness_app';
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private $db_port = 3306;
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private function __construct() {
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try {
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$this->connection = new mysqli(
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$this->db_host,
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$this->db_user,
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$this->db_pass,
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$this->db_name,
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$this->db_port
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);
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// Check connection
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if ($this->connection->connect_error) {
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throw new Exception('Database connection failed: ' . $this->connection->connect_error);
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}
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// Set charset
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$this->connection->set_charset('utf8mb4');
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// Enable error reporting
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mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
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} catch (Exception $e) {
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error_log('Database Error: ' . $e->getMessage());
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http_response_code(500);
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die(json_encode(['error' => 'Database connection failed']));
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}
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}
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/**
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* Singleton instance getter
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*/
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public static function getInstance() {
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if (self::$instance === null) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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/**
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* Get connection
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*/
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public function getConnection() {
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return $this->connection;
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}
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/**
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* Prepare and execute query
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*/
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public function prepare($query) {
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return $this->connection->prepare($query);
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}
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/**
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* Escape string
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*/
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public function escape($string) {
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return $this->connection->real_escape_string($string);
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}
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/**
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* Close connection
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*/
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public function close() {
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if ($this->connection) {
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$this->connection->close();
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}
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}
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/**
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* Begin transaction
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*/
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public function beginTransaction() {
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$this->connection->begin_transaction();
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}
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/**
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* Commit transaction
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*/
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public function commit() {
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$this->connection->commit();
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}
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/**
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* Rollback transaction
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*/
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public function rollback() {
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$this->connection->rollback();
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}
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/**
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* Get last inserted ID
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*/
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public function getLastInsertId() {
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return $this->connection->insert_id;
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}
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/**
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* Get affected rows
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*/
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public function getAffectedRows() {
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return $this->connection->affected_rows;
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}
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}
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// Prevent cloning
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final class SingletonDatabase extends Database {
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private function __clone() {}
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private function __wakeup() {}
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}
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?>
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