Apabila menjalankan fungsi klasifikasi artikel, ia menggesa bahawa operasi prapemprosesan pangkalan data PDO gagal.

Question

pertanyaan fungsi awam($sql,$batch=false){

$data=$batch?$this->data:array($this->data);

$this->data=array( );

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ​}