PHP multi step registration wizard wich saves data to MySQL

As part of a bigger web site, we need to develop a Multi Step Registration Wizard with progress, several steps and fields such as: - regular fields (name, date of birth, etc.); - regular buttons; - picture upload; - multi choice combobox (day of birth, etc); - multiple checkboxes (spoken languages: italian, english, etc.); - autocomplete/autosuggest field (city). the subsequent steps must vary according to the previous choices for example: our first step is "you are a:" and choices are: "DEVELOPER" "ACTOR" if you choose "DEVELOPER" step 2 must be "Languages" with choices: "PHP", "C#", etc if you choose "ACTOR" step 2 must be "Categories" with choices: "COMEDIAN" "DRAMA", ect you can find an example of what we are looking for in linked images here are the requisites: - the wizard consists of about 30 steps (for example: "General Info", "Spoken Languages", etc.). Not all the steps are used in a single registration wizard. not all the steps produce a change in the percentage of progress; - pages must be done in PHP; - pages and controls must be good looking, such as in the linked example; - pages must be easily themable (whe change a config file or csv and all the pages and controls of the wizard are affected); - data must be written to MySQL tables after last step confirmation; - code must be fully commented to be easily edited later without effort; - we prefer no licensed third party components are used. OPTIONAL WICH CONSITUTES A PREFERENTIAL TITLE (NOT TO BE DONE NOW) Probably, in the next months we'll require a new job: develop a PHP web service REST api to access the data saved by the registration wizard from [login to view URL] mobile app. Here are the requisites: - Api must be done in PHP and be consumed by [login to view URL] C# mobile App; - Api must support authentication trough OAuth; - Api must support record paging; - code must be fully commented to be easily edited later without effort; - Api must be provided to: connect with a secured connection trough OAuth authenticate user and password inserted in the app with MySQL UserID table read multiple records read single record insert, delete and update records - all the latest security techniques must be applied - you must provide a fully working code, written in C# for [login to view URL] mobile app to use the API: authenticate trough OAuth; authenticate user and password with MySQL UserID table read multiple records with paging read single record insert, delete and update records we would prefer to have a single person to do both jobs so please indicate if you would be able to write the optional part. in this case you would be preferred. thank you