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The krsort() function sorts the array in reverse order by key name

krsort　(　$array,　$sort_flag　);

The krsort() function sorts the array in reverse order by key. These values retain their original keys.

Serial Number	Parameters and Description
1	array(Required) It specifies an array
2	sort_flag(Optional) It specifies how to sort the array values. Possible values- SORT_REGULAR - Default Value. Treat the value as is (do not change the type) SORT_NUMERIC - Handle the value numerically SORT_STRING - Treat the value as a string SORT_LOCALE_STRING - Treat the value as a string based on local settings

This function returns TRUE on success and FALSE on failure.

Example

<?php
　　　$transport　=　array(　'a'=>'foot',　'b'=>'bike',　'c'=>'car',　'd'=>'plane');
　　　krsort($transport);
　　　print_r($transport);
?>

Output Result：

Array　(　[d]　=>　plane　[c]　=>　car　[b]　=>　bike　[a]　=>　foot　)