Add Arrays::changeKeyCase

[chadicus]

Allow arrays to go from underscored keys to camel caps keys, or vice versa.

$input = [
    'EMAIL_ADDRESS' => '[email protected]',
    'FIRST_NAME' => 'John',
    'LAST_NAME' => 'Doe',
];

$output = Arrays::changeKeyCase($input, Arrays::CASE_CAMEL_CAPS);

var_dump($output);

The above code would output

array(3) {
  'emailAddress' =>
  string(16) "[email protected]"
  'firstName' =>
  string(4) "John"
  'lastName' =>
  string(3) "Doe"
}

This pull request was originally submitted as #51 of the util-php repository

[coveralls]

Coverage remained the same at 100.0% when pulling 0c29de7 on chadicus:fea/changeKeyCase into bd9114b on dominionenterprises:master.

[coveralls]

Coverage remained the same at 100.0% when pulling 3c59f54 on chadicus:fea/changeKeyCase into bd9114b on dominionenterprises:master.