sort_array - sort an array array sort_array( array arr, string fun, object ob ); array sort_array( array arr, function f ); array sort_array( array arr, int direction ); The (ob, fun) syntax behaves the same as if (: call_other, ob, fun :) was passed as f. In the first two forms, the returned array is sorted with respect to the comparison function given. The function takes two elements as arguments, and returns -1 if if first argument is less than the second, 0 if they are the same, or 1 if the first argument is greater than the second. The third form returns an array with the same elements as 'arr', but quicksorted using built-in sort routines. A 'direction' of 1 or 0 will quicksort in ascending order, while a 'direction' of -1 will quicksort in descending order. A limitation of the built-in sort routines is that the array must be homogeneous, composed entirely of a single type, where that type is string, int, or float. Arrays of arrays are sorted by sorting based on the first element, making database sorts possible. See also: strcmp