多个搜索条件PHP结果在动态表中

Hope someone can help, very new to all this, been teaching myself for entertainment more than anything but I can't seem to get this page to work. I had it working before with one search filter but when I add more it doesn't seem to filter at all. Trying to get the page to display all records when no search added, then the user can search 1 or more filters and the relevant records will show. 3 of the filters are a date range, each range having too text fields to and from...Hope someone can help, very new to all this, be