php - MySql Query to find nearby places using longitude and latitude -


i have table 2 fields longitude , latitude describe place.

each record 1 place , have places in database. there 2 other values longitude , latitude place!

now want find places in database in specific radius point , calculate distance between main point , found point db!

any body knows how can this?

this table fields:

place_id place_longitude place_latitude place_name


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