1. Home

PHP clearstatcache() Function

Output file size, truncate file, clear cache, and then output file size again

Definition and Usage

The clearstatcache() function clears the file status cache.

PHP caches data for some functions for better performance. If a file is to be checked several times in a script, you probably want to avoid caching to get correct results. To do this, use the clearstatcache() function.

Syntax

clearstatcache(clear_realpath_cache, filename)

Parameter Values

Parameter Description
clear_realpath_cache Optional. Indicates whether to clear the realpath cache or not. Default is FALSE, which indicates not to clear realpath cache
filename Optional. Specifies a filename, and clears the realpath and cache for that file only

Tips and Notes

Tip: Functions that are caching:
  • stat()
  • lstat()
  • file_exists()
  • is_writable()
  • is_readable()
  • is_executable()
  • is_file()
  • is_dir()
  • is_link()
  • filectime()
  • fileatime()
  • filemtime()
  • fileinode()
  • filegroup()
  • fileowner()
  • filesize()
  • filetype()
  • fileperms()

    • Technical Details

    Return Value: Nothing
    PHP Version: 4.0+
    PHP Changelog: PHP 5.3 - Added two optional parameters: clear_realpath_cahe and filename

    ❮ PHP Filesystem Reference

    Categories

    HTML CSS3 Bootstrap Foundation Sass JavaScript TypeScript JQuery AngularJS React NodeJS Highcharts PHP Python Python3 Django Linux Docker Ruby Java C C ++ Perl Servlet JSP Lua Scala Go ASP C # SQL MySQL SQLite MongoDB Redis Android Swift ionic Kotlin XML tutorial

    Contact US