کنترلر مشترک برای عملیات crud تکراری

سلام، بنظرم این کلاس بتونه بهت کمک بنه

class database
{
    private $dsn = "mysql:host=localhost";
    private $username = 'root';
    private $password = 'root';
    private $options = [
        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_CASE => PDO::CASE_NATURAL,
        PDO::ATTR_ORACLE_NULLS => PDO::NULL_EMPTY_STRING
    ];
    public $conn;

    public function insert(string $table, array $feilds , $values) : bool
    {
        $count = count($feilds);
        $prepare_repeat = chop(str_repeat('?,',$count),',');
        $feilds = implode(',',$feilds);
        $stmt = $this->conn->prepare("insert into $table ($feilds) values ($prepare_repeat)");
        $result = $stmt->execute($values);
        return $result;
    }

    public function update(string $table, array $feilds, array $values, string $where_conditional,array $where_value) : bool
    {
        $feilds = array_map(fn($item)=>"$item = ? ,",$feilds);
        $feilds = chop(implode('',$feilds),',');
        $feilds = chop($feilds,',');
        $where_value = array_map(fn($item)=>"'$item'",$where_value);
        $where_value = implode(',',$where_value);
        $stmt = $this->conn->prepare("update $table set $feilds where $where_conditional = $where_value");
        $result = $stmt->execute($values);
        return $result;
    }

    public function delete(string $table, string $where_conditional,array $where_value) : bool
    {
        $where_value = array_map(fn($item)=>"'$item'",$where_value);
        $where_value = implode(',',$where_value);
        $result = $this->conn->query("delete from $table where $where_conditional = $where_value");
        return $result;
    }

    public function select(string $table, array $feilds, string $where_conditional = null, array $where_value = null)
    {
        $feilds = implode(',',$feilds);
        if ($where_value === null and $where_conditional === null){
        $result = $this->conn->query("select $feilds from $table");
        }
        if ($where_conditional !== null and $where_value !== null){
            $where_value = array_map(fn($item)=>"'$item'",$where_value);
            $where_value = implode(',',$where_value);
            $result = $this->conn->query("select $feilds from $table where $where_conditional = $where_value");
        }
        if (isset($result)){
        return $result->fetchAll(PDO::FETCH_OBJ);
        }
    }

}