"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 — Obter o tamanho do cache do caminho absoluto
Descrição
realpath_cache_size(): int
Obtém a quantidade de memória utilizada pelo cache do caminho absoluto.
Parâmetros
Esta função não possui parâmetros.
Valor Retornado
Retorna quanta memória o cache do caminho absoluto está utilizando.
Exemplos
Exemplo #1 Exemplo de realpath_cache_size()
<?php
var_dump(realpath_cache_size());
?>O exemplo acima produzirá algo semelhante a:
int(412)
Veja Também
- realpath_cache_get() - Obter entradas de cache do caminho absoluto
- As opções de configurações de 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
