php arsort() function
Translation results：
英[sɔ:t] 美[sɔ:rt]
n.Classification, category; quality, nature; method; a group
vt.& vi.Classification; rectification, arrangement ; suitable for
vt. to select; to classify; to put in order
vi. to classify; to communicate; to coordinate
Third person singular: sorts Plural: sorts Present participle: sorting past tense: sorted past participle: sorted
php arsort() functionsyntax
Function:Sort the associative array in descending order according to the key value
Syntax: arsort(array,sortingtype)
Parameters :
| Parameter | Description |
| 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 in reverse and maintain the index relationship. Mainly used for sorting associative arrays where the order of cells is important. The optional second parameter contains additional sorting flags. Returns TRUE if successful, FALSE otherwise.
php arsort() functionexample
<?php
$age=array("西门"=>"60","灭绝"=>"56","无忌"=>"31");
arsort($age);
print_r($age);
?>Run instance»
Click the "Run instance" button to view the online instance
Output:
Array ( [西门] => 60 [灭绝] => 56 [无忌] => 31 )