PHP: krsort() function

Last update on August 19 2022 21:50:40 (UTC/GMT +8 hours)

PHP: Sort an array by key in reverse order

The krsort() function is used to sort an array by key in reverse order. Sorts an array by key in reverse order, maintaining a key to data correlations. The function is useful mainly for associative arrays.

Version:

(PHP 4 and above)

Syntax:

krsort(array_name, sort_type)

Parameters:

Name	Description	Required / Optional	Type
array_name	The argument to process in radians.	Required	Array
sort_type	Sets the sorting behavior. Possible Sorting type flags. SORT_REGULAR - Compare items normally. SORT_NUMERIC - Compare items numerically. SORT_STRING - Compare items as strings. SORT_LOCALE_STRING - compare items as strings, based on the current locale	Optional	Integer

Return value:

TRUE on success or FALSE on failure.

Value Type: Boolean.

Example:

<?php
$w3r_array = array("x" => "html", "y" => "xhtml", "z" => "xml");
krsort($w3r_array);
print_r($w3r_array);
?>

Output:

Array ([z] => xml [y] => xhtml [x] => html)

Pictorial Presentation:

php function reference: krsort() function

View the example in the browser

Practice here online:

See also

PHP Function Reference

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