Clears the cache created from calls to the stat() function. All functions that return file status information (such as file_exists() , filectime() , filesize() , and so on) use the stat() function to retrieve the needed information from the system. These calls are expensive in terms of resources; thus, to avoid a performance degrade, PHP caches the results of stat() calls. Whenever any of the file status functions is used on a file for which information is already contained in the cache, the cached information is returned. The information may not be accurate, however, as the disk contents might have been changed. To force an update of the internal cache, use clearstatcache() .
Affected functions: stat() , lstat() , file_exists() , is_writeable() , is_readable() , is_executable() , is_file() , is_dir() , is_link() , filectime() , fileatime() , filemtime() , fileinode() , filegroup() , fileowner() , filesize() , filetype() , fileperms() .
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.