public static function conectar()
{
try {
if (!isset(self::$conexao)) {
$dsn = DATABASE . ":host" . "=" . HOST . ";dbname=" . NAME_DB;
self::$conexao = new PDO($dsn, USER, PASS);
self::$conexao->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
} catch (PDOException $e) {
echo "Erro: " . $e->getMessage();
}
return self::$conexao;
}
