shm_get_var
sadly troy is right
the following script will return:
resource(5) of type (stream)
int(0)
<?php
define("FOPEN_RESOURCE", 1);
define("FOPEN_FILEPATH", "/path/to/file");
$fopen_resource = fopen(FOPEN_FILEPATH, "w");
var_dump($fopen_resource);
$shm_id = shm_attach(1);
if ($shm_id === false)
{
echo "Fail to attach shared memory.\n";
}
if (!shm_put_var($shm_id, FOPEN_RESOURCE, $fopen_resource))
{
echo "Failed to put var 1 in shared memory $shm_id.\n";
}
$sm_fopen_resource = shm_get_var($shm_id, FOPEN_RESOURCE);
if ($sm_fopen_resource === false)
{
echo "Failed to retreive fopen_resource from Shared memory\r\n";
}
var_dump($sm_fopen_resource);
if($shm_id) shm_remove($shm_id);
if($fopen_resource) fclose($fopen_resource);
?>
shm_put_var
(PHP 4, PHP 5)
shm_put_var — Insère ou modifie une variable de la mémoire partagée
Description
shm_put_var() insère ou modifie la variable variable avec la clé variable_key dans le segment de mémoire shm_identifier .
Des alertes (niveau E_WARNING) seront émises si shm_identifier n'est pas un segment de mémoire système V valide, ou s'il n'y a pas assez de mémoire pour votre requête.
Liste de paramètres
- shm_identifier
-
Une ressource, représentant la mémoire partagée, telle que retournée par la fonction shm_attach()
- variable_key
-
La clé de la variable.
- variable
-
La variable. Tous les types de variables sont supportés.
Valeurs de retour
Cette fonction retourne TRUE en cas de succès, FALSE en cas d'échec.
add a note
User Contributed Notesshm_put_var
jasonrlester at yahoo dot com
25-Apr-2008 12:51
25-Apr-2008 12:51
troy
06-Mar-2008 07:02
06-Mar-2008 07:02
This isn't entirely accurate. Not all variable types are supported, you can't put a resource variable into shared memory.
When you try to take it out, it will be a zero.
tomlove at gmail dot com
30-Sep-2004 04:53
30-Sep-2004 04:53
Use as few variable_keys as you can. With large arrays of data, rather make the array multi-dimensional and store under one variable_key than use variable_key as your index. The benefit is especially noticeable when repeated fetching from the end of the array is necessary and updates are less frequent.