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PHP Array rsort() Function

Last Updated : 17 Mar 2025

The PHP rsort( ) function is used to sort an array in reverse order. This function introduced in PHP 4.0.

Syntax

Parameter

ParameterDescriptionIs compulsory
arraySpecifies the array to use.compulsory
Sort flagsIt specifies how to sort the array values. Possible values -
SORT_REGULAR - Default. Treat values as they are (don't change types)
SORT_NUMERIC - Treat values numerically
SORT_STRING - Treat values as strings
SORT_LOCALE_STRING - Treat values as strings, based on local settings		Optional

Returns

The PHP rsort( ) function returns true on success or false on failure.

Example 1

Output:

Array
(
    [0] => orange
    [1] => mango
    [2] => banana
)

Example 2

Output:

Array
(
    [0] => 600
    [1] => 400
    [2] => 220
    [3] => 110
    [4] => 100
)

Example 3

Output:

Array
(
    [0] =>os
    [1] => java
    [2] =>dbms
    [3] => compiler
)

Example 4

Output:

Array
(
    [0] =>nexon
    [1] =>hexa
    [2] =>audi
)

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