Bug a l'insertion de la requete :
SELECT id, (6366*acos(cos(radians())*cos(radians(`latitude`))*cos(radians(`longitude`) - radians()) + sin(radians())*sin(radians(`latitude`)))) AS dist FROM villes WHERE (6366*acos(cos(radians())*cos(radians(`latitude`))*cos(radians(`longitude`) - radians()) + sin(radians())*sin(radians(`latitude`)))) <= '10' ORDER by dist