file_exists()希望参数1是一个有效路径，给定字符串

I'm designing a web application that can be customized based on which retail location the end user is coming from. For example, if a user is coming from a store called Farmer's Market, there may be customized content or extra links available to that user, specific to that particular store. file_exists() is used to determine if there are any customized portions of the page that need to be imported.I'm designing a web application that can be cus