How do you sort (alphabetically by keys) a $_POST request in PHP.

Question

I'm looking at http://www.php.net/manual/en/array.sorting.php as a reference. I'm trying to sort the $_POST by the keys. This is what I am trying, but it only prints "1". What else needs to happen, or what is missing? Thank.

<?php
    $data = krsort($_POST);
    print_r( $data );
?>

Answer 1

krsort returns a boolean - TRUE on success, FALSE on failure. Try print_r($_POST); and see what comes out - the array should be sorted!

Answer 2

The return value of ksort() is true or value, whether or not the sorting was successful, instead of the sorted array.

Try:

<?php
    krsort($_POST);
    print_r( $_POST );
?>

Answer 3

The array sorting functions typically modify the array in-place - so you'd want to print_r($_POST) instead. The reason you're getting 1 right now as your output is because the return value from the sort functions is a status code indicating whether or not the array was able to be sorted properly - 1 indicates success.