The clearstatcache() function clears the file status cache.
PHP caches the information returned by the following functions −
- stat()
- lstat()
- file_exists()
- is_writable()
- is_readable()
- is_executable()
- is_file()
- is_dir()
- filegroup()
- fileowner()
- filesize()
- filetype()
- fileperms()
This is done to provide enhanced performance.
Syntax
void clearstatecache()
Parameters
- NA
Return
No value is returned by the clearstatcache() function.
Example
The following is an example that checks for file “tmp.txt” and clears cache.
<?php
$file = fopen("tmp.txt", "a+");
// Clear cache
clearstatcache();
echo "Cache cleared!";
?>Output
Cache cleared!