Warum geht die native Abfrage schief? . .

Question

//原生查询
              public function query(){
               $sql="SELECT 'name','email' FROM 'student' WHERE 'id' IN (4,7,8)";
                dump(Db:: Abfrage ($sql));
              }

Answer 1

SELECT id,user_id FROM tp_cart WHERE id IN ('41','42')

SELECT id,user_id FROM tp_cart WHERE id IN ('41','42')

SELECT 'name','email' FROM 'student' WHERE 'id' IN (4,7,8)

注意符号