An XHTML document that conforms to an XHTML specification is said to be valid Validity assures consistency in document code, which in turn eases processing. Zoo Keeper Application Form People Mayor CONTACT DETAILS Nam Telephone ma PERSONAL INFORMATION Gender Well you for you want to be Opel ex YOUR FAVORITE ANIMALS CH lephant Wh Anaconda Crab Figure 1: Zookeeper application (a) Prepare PHP combine with XHTML document to allow the user to provide their resume and details. Your document should contain the PHP and XHTML tags for all the controls displayed in the same sequence as shown in Figure 1. (b) Once the applicants submit the application your program is able to save all the information in the database named resume and table named skill using mysqli_connect()