ksort

Name:ksort

Category:Array

Programming Language:php

One-line Description:Sort the array by key name.

Definition and usage

ksort() function sorts the associative arrays according to the key names.

Tip: Please use the krsort() function to sort the associative arrays in descending order by key names.

Tip: Please use the asort() function to sort the associative arrays in ascending order by key values.

Sort the associative array by key name:

 <?php
$age = array ( "Bill" => "60" , "Steve" => "56" , "mark" => "31" ) ;
ksort ( $age ) ;
?>

Try it yourself

 ksort ( array , sortingtype ) ;

parameter	describe
array	Required. Specifies the array to be sorted.
sortingtype	Optional. Specifies how to arrange elements/items of an array. Possible values: 0 = SORT_REGULAR -Default. Arrange each item in a regular order (Standard ASCII, without changing the type). 1 = SORT_NUMERIC - Treat each item as a number. 2 = SORT_STRING - Handle each item as a string. 3 = SORT_LOCALE_STRING - Handle each item as a string, based on the current locale setting (can be changed via setlocale()). 4 = SORT_NATURAL - Handle each item as a string, using a natural sort like natsort(). 5 = SORT_FLAG_CASE - Strings can be sorted in combination with (bit-by-bit or) SORT_STRING or SORT_NATURAL, case-insensitive.

parameter

describe

array

Required. Specifies the array to be sorted.

sortingtype

Optional. Specifies how to arrange elements/items of an array. Possible values:

0 = SORT_REGULAR -Default. Arrange each item in a regular order (Standard ASCII, without changing the type).
1 = SORT_NUMERIC - Treat each item as a number.
2 = SORT_STRING - Handle each item as a string.
3 = SORT_LOCALE_STRING - Handle each item as a string, based on the current locale setting (can be changed via setlocale()).
4 = SORT_NATURAL - Handle each item as a string, using a natural sort like natsort().
5 = SORT_FLAG_CASE - Strings can be sorted in combination with (bit-by-bit or) SORT_STRING or SORT_NATURAL, case-insensitive.