You can implement this by doing the following:
- Add a column in the database and call it
class_order - Your SQL query should have
ORDER BY class_order - Moving up
UPDATE table set class_order = THE_ORDER_OF_THE_CLASS_ABOVE WHERE id = TARGET_CLASSandUPDATE table set class_order = TARGET_CLASS_ORDER WHERE id = THE_CLASS_ABOVE - Moving down is the opposite of moving up
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solved php – data entry and order issue [closed]