array_change_key_case ($input_array , int $size [, bool $preserve_keys = FALSE ] )
Parameter | DESCRIPTION |
---|---|
$input_array | Required : Input array to change key cases |
$case | Optional : CASE_LOWER ( default ) , keys will be changed to lower case CASE_UPPER , keys will be changed to upper case |
$input=array('One'=>1,'Two'=>2,'Three'=>3,'Four'=>4,'Five'=>5);
$output=array_change_key_case($input);
echo print_r($output);
Output is here
Array ( [one] => 1 [two] => 2 [three] => 3 [four] => 4 [five] => 5 ) 1
$input=array('One'=>1,'Two'=>2,'Three'=>3,'Four'=>4,'Five'=>5);
$output=array_change_key_case($input,CASE_UPPER);
echo print_r($output);
Output is here
Array ( [ONE] => 1 [TWO] => 2 [THREE] => 3 [FOUR] => 4 [FIVE] => 5 ) 1
$input=array('One'=>1,'Two'=>2,'Three'=>3,'Four'=>4,'Five'=>5);
$output=array_change_key_case($input,CASE_LOWER);
echo print_r($output);
Output is here
Array ( [one] => 1 [two] => 2 [three] => 3 [four] => 4 [five] => 5 ) 1
Getting keys of an array