array_change_key_case
array_change_key_case:
This function used to changes the keys in a array into upper or lower case.
Syntax:
array_change_key_case(array)
Example:
<?php
$arr=array(”Case1″=>”a”,”CASE2″=>’b',”case3″=>”c”,”CaSe4″=>”d”);
print_r (array_change_key_case($arr,CASE_UPPER));
print_r (array_change_key_case($arr,CASE_LOWER));
?>
Output:
Array (
[CASE1] => a
[CASE2] => b
[CASE3] => c
[CASE4] => d
)
Array (
[case1] => a
[case2] => b
[case3] => c
[case4] => d
)
