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however, in certain cases, you may want to clear the cached information.
therefore, the result of the last call to any of the status functions (listed below) is stored for use on the next such call using the same filename.
it is desired that any output coming from print(), echo() and friends is immediately written to the output and not cached in any buffer.
whereas applications written for the web are executed within splits of a seconds, shell application tend to have a much longer execution time.
this function caches information about specific filenames, so you only need to call clearstatcache() if you are performing multiple operations on the same filename and require the information about that particular file to not be cached.
this value is only cached for the lifetime of a single request.
reload the currently displayed document this may, for example, be needed to refresh web pages that have been modified since they were loaded, in order to make the changes visible. any images on the page are downloaded again, even if cached copies exist.
טעינה מחדש של המסמך המוצג כרגע דבר זה עשוי להיות נחוץ למשל לצורך רענון דפי אינטרנט שהשתנו מאז שהם נטענו, וזאת במטרה לראות את השינויים.