180 - PHP: Función SubStr

http://php.net/manual/en/function.substr.php

179 - HTML - Time Input

Ingresar hora

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/time

178 - HTML - Date Input

Ingresar fechas

http://www.anerbarrena.com/date-input-html5-2829/

177 - HTML - TextArea al 100%

https://stackoverflow.com/questions/11089540/textarea-height-100

176 - CodeIgniter - TextArea

Cómo utilizo un TextArea en CodeIgniter.

https://stackoverflow.com/questions/16282529/my-codeigniter-form-sends-textarea-using-post-and-does-not-send-input-type-text

175 - Bootstrap v3.0.0

Acceso a la documentación online

http://bootstrapdocs.com/v3.0.0/docs/