Using PHP sort() Function to Sort Arrays in Ascending Order

In PHP, the built‑in sort function provides a simple way to sort an array in ascending order.

The function signature is:

sort(array &$array, int $sort_flags = SORT_REGULAR): bool

Parameters:

$array : the array to be sorted (required).

$sort_flags : optional flag that determines the sorting behavior; default is SORT_REGULAR . Other options include SORT_NUMERIC and SORT_STRING .

The function returns true on success, false otherwise.

Example for sorting strings:

Output: apple banana grape orange

Example for sorting numbers with SORT_NUMERIC :

Output: 1 2 5 10 30

Note that sort modifies the original array in place and does not return a new sorted array; you can also specify different sorting flags to meet various needs.