We will see how we can store PHP array in database. We will store the PHParray in database and we get it back, as PHP array. When we create management system or a CMS like application, we need to store a lot of configuration per user, per module etc. Multidimensional array is the best ever thing to work with in such situation. Configuration can be of two different types; searchable and not searchable. Searchable configurations are those which are used to filter a search result. For example various flags, tags, categories that we store with contents. We might need to filter contents with this flags, tags etc. No searchable configurations are like widget settings. We do not search for settings of an widget, rather we need those settings while rendering the widget.
We might need to read comment blocks into PHP array. Comment blocks in php files describes a file & we might need this info in array. These comment blocks are not there just because the developer wanted to. These lines can be there as the system may require those lines to describe the file in terms such as the name of the theme or plugin, create date, author name, update date, version number etc. These information about the file then can later be used in the system or CMS.