MySQL SELECT多个表并选择日期并与今天比较

Question

I'm trying to select the date on my database and compare it to the date today. My current code has no error but it doesn't give me any result.

My code:

$query = mysqli_query($mysqli, "select *, date_format(date, '%Y-%m-%d') from appointment
                                LEFT JOIN doctor
                                ON doctor.doctor_id = appointment.appointment_title
                                LEFT JOIN patient
                                ON patient.patient_id = appointment.patient_id
                                where appointment.appointment_title = $session_id AND
                                date(appointment.date) = CURDATE()
                                order by appointment.date ASC");

EDIT:

Here's an example of appointment.date = 03/05/2018 and the data type is var

Answer 1

Use STR_TO_DATE() function to convert date according to current date format

$query = mysqli_query($mysqli, "SELECT *, STR_TO_DATE(date, '%d/%m/%Y') FROM appointment
                            LEFT JOIN doctor
                            ON doctor.doctor_id = appointment.appointment_title
                            LEFT JOIN patient
                            ON patient.patient_id = appointment.patient_id
                            WHERE appointment.appointment_title = $session_id AND
                            date(STR_TO_DATE(appointment.date, '%d/%m/%Y')) = CURDATE()
                            ORDER BY appointment.date ASC");

Answer 2

By using CURDATE() you have something like : 20180306 . Try this one :

$query = mysqli_query($mysqli, "select *, date_format(date, '%Y-%m-%d') from appointment
                                LEFT JOIN doctor
                                ON doctor.doctor_id = appointment.appointment_title
                                LEFT JOIN patient
                                ON patient.patient_id = appointment.patient_id
                                where appointment.appointment_title = $session_id AND
                                date(appointment.date) = DATE(CURDATE())
                                order by appointment.date ASC");