PHP krsort() 函数

PHP Array ɳɳ

实例

按照键名对关联数组进行降序排序：

"60","Steve"=>"56","mark"=>"31");
krsort($age);
?>

运行实例

定义和用法

krsort() 函数对关联数组按照键名进行降序排序。

Tip:Please use ksort() The function sorts the associated array in ascending order by key name.

Tip:Please use arsort() The function sorts the associated array in descending order by key value.

Syntax

krsort(array,sortingtype);
Parameters Description
array Required. Specifies the array to be sorted.
sortingtype

Optional. Specifies how to sort the elements/items of the array. Possible values:

  • 0 = SORT_REGULAR - Default. Arrange each item in the standard order (Standard ASCII, do not change 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 setting (can be changed via setlocale()).
  • 4 = SORT_NATURAL - Treat each item as a string, using a natural sorting similar to natsort().
  • 5 = SORT_FLAG_CASE - Can combine (bitwise OR) SORT_STRING or SORT_NATURAL to sort strings without case sensitivity.

Description

The krsort() function sorts an array in reverse order by key, retaining the original keys of the array values.

The optional second parameter includes additional sorting flags.

Returns TRUE if successful, otherwise returns FALSE.

Technical Details

Return Value: Returns TRUE if successful, otherwise returns FALSE.
PHP Version: 4+

PHP Array ɳɳ