date formate in text boxe

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Javascript

PHP

MySQL

<input type="text" name="date"> i am use this text box in html for get the date from user i want to restrict to user enter date only this formate (mm/dd/yyyy)
not any other formate after this store in mysql database and retrieve it and show on this formate not (by default formate yyyy-mm-dd)
we require

query to save date
query to retrieve date