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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
CREATE TABLE IF NOT EXISTS users (id INTEGER AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(50) NOT NULL UNIQUE);
INSERT IGNORE INTO users (name) VALUE ('BOB');
INSERT IGNORE INTO users (name) VALUE ('ALICE');
SELECT * FROM users;
ALTER TABLE users ADD COLUMN email VARCHAR(256);
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<?php
class Database
{
public function _construct()
{
}
public function connect() : void
{
}
protected function executeQuery($query, $params = []) : mixed
{
global $pdo;
try {
$stmt = $pdo->prepare($query);
$stmt->execute($params);
return $stmt;
}
catch (\PDOException $e) {
throw new \Exception("Database query error: " . $e->getMessage());
}
}
public function getUsers() : array
{
return array_map(fn($user) => $user['name'], $this->executeQuery('SELECT * FROM users')->fetchAll());
}
public function addUser(string $name, string $email) : void
{
$this->executeQuery('INSERT INTO users (name, email) VALUES (:name, :email)', [':name' => $name, ':email' => $email]);
}
}
$db = new Database();
$db->addUser('DROP TABLE users;', "richard@mail.ru");
print_r($db->getUsers());
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