The Zend PHP 5.5 is a standalone certification from Zend with the exam code 200-550. The goal of the Zend Certification program is to allow PHP professionals to attain the "Zend Certified Engineer" designation. Zend 200-550 exam provides a measure of technical distinction that employers use to evaluate prospective employees.
uCertify course includes videos to help understand concepts. It also includes How Tos that help learners with how to accomplish certain tasks.