General functions for PHP
$ composer require pisc/upperscore
PHP version >= 5.6
use function pisc\upperscore\arrayFlatten;
$flat = arrayFlatten([ 'cow', [ 'bear', ['bunny', 'santa' ], 'rabbit' ]]);
PHP version < 5.6
use pisc\upperscore as u;
$flat = u\arrayFlatten([ 'cow', [ 'bear', ['bunny', 'santa' ], 'rabbit' ]]);
$ ./phpunit.sh