need small php function

need small function with php i give you all logics aal info in attached txt file ek word left se ek word right se a b c d e f first row a f b e c d a d f c b e a e d b f c a c e f d b a b c d e f again apeard first row ye aap ne dekha ke kesay first line shuffle ho ho kr again wapis a gai h ye php ke ander me chahta ho ke input ke ander koi user urdu arbic ya english dalay to her word ko alag kr de means asy koi type krta h input me PAKISTAN INDIA then solve asy ho first remove word space count PAKISTANINDIA then break words P A K I S T A N I N D I A THEN PROCEESS oper wala ek word left se ek word right se until first wali row again nhn a jati