99 lines
2.9 KiB
PHP
Executable File
99 lines
2.9 KiB
PHP
Executable File
<?php
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namespace App\Models;
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use PDO;
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use PDOException;
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class Database {
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private static $instance = null;
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private $connection;
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private function __construct() {
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$config = include __DIR__ . '/../../config/database.php';
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$dsn = "mysql:host={$config['host']};dbname={$config['database']};charset={$config['charset']}";
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try {
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$this->connection = new PDO(
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$dsn,
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$config['username'],
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$config['password'],
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[
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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PDO::ATTR_EMULATE_PREPARES => false,
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]
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);
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} catch (PDOException $e) {
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die("Database connection failed: " . $e->getMessage());
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}
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}
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public static function getInstance() {
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if (self::$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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public function getConnection() {
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return $this->connection;
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}
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public function query($sql, $params = []) {
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$stmt = $this->connection->prepare($sql);
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$stmt->execute($params);
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return $stmt;
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}
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public function fetchAll($sql, $params = []) {
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return $this->query($sql, $params)->fetchAll();
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}
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public function fetch($sql, $params = []) {
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return $this->query($sql, $params)->fetch();
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}
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public function insert($table, $data) {
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$columns = implode(', ', array_keys($data));
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$placeholders = ':' . implode(', :', array_keys($data));
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$sql = "INSERT INTO {$table} ({$columns}) VALUES ({$placeholders})";
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$stmt = $this->connection->prepare($sql);
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$stmt->execute($data);
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return $this->connection->lastInsertId();
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}
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public function update($table, $data, $where) {
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$setParts = [];
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foreach ($data as $key => $value) {
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$setParts[] = "{$key} = :{$key}";
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}
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$whereParts = [];
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foreach ($where as $key => $value) {
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$whereParts[] = "{$key} = :where_{$key}";
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$data["where_{$key}"] = $value;
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}
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$sql = "UPDATE {$table} SET " . implode(', ', $setParts) .
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" WHERE " . implode(' AND ', $whereParts);
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$stmt = $this->connection->prepare($sql);
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return $stmt->execute($data);
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}
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public function delete($table, $where) {
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$whereParts = [];
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$params = [];
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foreach ($where as $key => $value) {
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$whereParts[] = "{$key} = :{$key}";
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$params[$key] = $value;
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}
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$sql = "DELETE FROM {$table} WHERE " . implode(' AND ', $whereParts);
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return $this->query($sql, $params)->rowCount();
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}
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}
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