ksort

Description

Sorts an array by key, maintaining key to data correlations. This is useful mainly for associative arrays.

Example 1. ksort() example $fruits = array("d"=>"lemon","a"=>"orange","b"=>"banana","c"=>"apple"); ksort($fruits); for(reset($fruits); $key = key($fruits); next($fruits)) { echo "fruits[$key] = ".$fruits[$key]."\n"; }

This example would display: fruits[a] = orange fruits[b] = banana fruits[c] = apple fruits[d] = lemon

See also asort(), arsort(), sort(), and rsort().