tryphp_func_array_change_kc2.php:
<!DOCTYPE html> <html> <body> <?php $age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43"); print_r(array_change_key_case($age,CASE_LOWER)); ?> </body> </html>
Array ( [peter] => 35 [ben] => 37 [joe] => 43 )