Just copying this from the docs, but you can pass an array of functions to mixin: __::mixin(array( 'capitalize'=> function($string) { return ucwords($str

Just copying this from the docs, but you can pass an array of functions to mixin: __::mixin(array( 'capitalize'=> function($string) { return ucwords($string); } )); __::capitalize('moe'); // 'Moe'