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I need slight modification to an existing Wordpress plugin.
I have a Wordpress plugin that takes search queries (that are stored in a MySQL table, next to two other tables that store categories and subcategories of search queries). The search queries are built in such a way that the search word or search words are combined within the URL. On the page there is a text field in which the user will key in the search query. In the database the search queries are stored with the place-holder [keyword]. When a user types in the search word, this should replace the place-holder [keyword] in the URL.
In some instances there are more than one keyword in the search query, and in these instances, instead of [keyword] we have [keyword1] and [keyword2], or [keyword1], [keyword2] and [keyword3].
The required modification will add the relevant extra text fields, whenever needed.