php The krsort() function is used to sort the array in reverse order by key name.
php krsort() function syntax
Function: Sort the associative array in descending order according to the key name
Syntax:
krsort(array,sortingtype)
Parameters:
array Required. Specifies the array to be sorted.
sortingtype Optional. Specifies how the elements/items of an array are arranged. Possible values: 0 = SORT_REGULAR - Default. Put each item in regular order (Standard ASCII, don't change the type). 1 = SORT_NUMERIC - treat each item as a number. 2 = SORT_STRING - Treat each item as a string. 3 = SORT_LOCALE_STRING - Treat each item as a string, based on the current locale (can be changed with setlocale()). 4 = SORT_NATURAL - Treat each item as a string, using natural sorting like natsort(). 5 = SORT_FLAG_CASE - Strings can be sorted in combination (bitwise OR) with SORT_STRING or SORT_NATURAL, case-insensitively.
Description: Sort the array by key name and retain the original keys for the array values. The optional second parameter contains additional sorting flags. Returns TRUE if successful, FALSE otherwise.
php krsort() function example
<?php $age=array("西门"=>"60","无忌"=>"31","灭绝"=>"56"); krsort($age); print_r($age); ?>
Output:
Array ( [西门] => 60 [灭绝] => 56 [无忌] => 31 )
This article is an introduction to the PHP krsort function. I hope it will be helpful to friends in need!
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