Query MySQL Date Range Via PHP

Hi,

I have a StartDate & EndDate column in the table products my DB
I have a Search Filter on my PHP website which has a Date picker called dpStartDate & dpEndDate.

I need to query my MySQL DB to select records that have
StartDate = or > than dpStartDate
AND
EndDate < or = dpEndDate

I need the PHP code to get the values from the Datepicker Textboxes, Parse the date to the correct format and then create the query based on the values.

Thanks so much!