"realpath_cache_size" is used by PHP to cache the real file system paths of filenames referenced instead of looking them up each time. Every time you perform any of the various file functions or include/require a file and use a relative path, PHP has to look up where that file really exists. PHP caches those values so it doesn’t have to search the current working directory and include_path for the file you are working on.
If your website uses lots of relative path files, think about increasing this value. What value is required can be better estimated after monitoring by how fast the cache fills using realpath_cache_size() after restarting. Its contents can be viewed using realpath_cache_get().
realpath_cache_size
(PHP 5 >= 5.3.2, PHP 7, PHP 8)
realpath_cache_size — Obtiene el tamaño de la caché de la ruta real
Descripción
realpath_cache_size(): int
Obtiene la cantidad de memoria usada por la caché de la ruta real.
Valores devueltos
Devuelve la cantidad de memoria que la caché de la ruta real está usando.
Ejemplos
Ejemplo #1 Ejemplo de realpath_cache_size()
<?php
var_dump(realpath_cache_size());
?>El resultado del ejemplo sería algo similar a:
int(412)
Ver también
- realpath_cache_get() - Obtiene las entradas de la caché de la ruta real
- La opción de configuración realpath_cache_size
add a note
User Contributed Notes 3 notes
Stephen Pritchard from Arcanavision ¶
13 years ago
superaap at gmail dot com ¶
14 years ago
Note that the realpath cache is not used if either safe_mode is on or an open_basedir restriction is in effect.
This is having a huge performance effect, causing lots of calls to lstat.
A bugreport has already been filed at http://bugs.php.net/bug.php?id=52312
