array_unique in PHP

Synatx of array_unique array array_unique(array array[, int sort_flags]) Creates and returns an array containing each element in the given array. If any values are duplicated, the later values are ignored. The sort_flags optional argument can be used to alter the sorting methods with constants: SORT_REGULAR, SORT_NUMERIC, SORT_STRING (default), and SORT_LOCALE_STRING. Keys from the original array … Read more