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The rsort Function

The rsort function sorts an array in descending order. The function modifies the array itself.

Syntax

rsort(array &$array, int $flags = SORT_REGULAR): bool

Example

Let's sort an array in descending order:

<?php $arr = [1, 3, 2, 5, 4]; rsort($arr); var_dump($arr); ?>

Code execution result:

[5, 4, 3, 2, 1]

See Also

  • the sort function,
    which sorts in ascending order of elements
  • the ksort function,
    which sorts in ascending order of keys
  • the krsort function,
    which sorts in descending order of keys
  • the asort function,
    which sorts in ascending order of elements while preserving keys
  • the arsort function,
    which sorts in descending order of elements while preserving keys
  • the natsort function,
    which sorts using natural order algorithm
  • the natcasesort function,
    which sorts using natural order algorithm case-insensitively
  • the usort function,
    which sorts using a callback function
  • the uksort function,
    which sorts by keys using a callback function
  • the uasort function,
    which sorts using a callback function while preserving keys
  • the array_multisort function,
    which sorts multiple arrays
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