Need to call clearstatcache() if you are performing This function caches information about specific filenames, so you only However unlink() clears the cache automatically. If youĬreate the file, it will return true even if you then delete the file. So, if you call file_exists() on a file thatĭoesn't exist, it will return false until you create the file. You should also note that PHP doesn't cache information about non-existentįiles. In these cases, you can use theĬlearstatcache() function to clear the information Multiple times within a single script, and that file is in danger ofīeing removed or changed during that script's operation, you may elect toĬlear the status cache. For instance, if the same file is being checked However, in certain cases, you may want to clear theĬached information.
PHP caches the information those functions return in order to provideįaster performance.
#Manual scriptcase archive#
Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto searchĬlearstatcache( bool $clear_realpath_cache = false, string $filename = ""): voidĪny of the other functions listed in the affected functions list (below),