PHP Function ksort()

Syntax

ksort ( $array, $sort_flag );

Definition and Usage

The ksort() function sorts an array by key, maintaining key to data correlations. This is useful mainly for associative arrays.

Paramters

Parameter	Description
array	Required. Specifies an array
sort_flag	Optional. Specifies how to sort the array values. Possible values: SORT_REGULAR - Default. Treat values as they are (don't change types) SORT_NUMERIC - Treat values numerically SORT_STRING - Treat values as strings SORT_LOCALE_STRING - Treat values as strings, based on local settings

Return Value

This function returns TRUE on success, or FALSE on failure.

Example

Try out following example:

<?php $transport = array( a=>'foot', b=>'bike', c=>'car', d=>'plane'); ksort($transport); print_r($transport); ?>

This will produce following result:

Array ( [a] => foot [b] => bike [c] => car [d] => plane )