apc_bin_dumpfile()

(PECL apc >= 3.1.4)

Output a binary dump of cached files and user variables to a file

说明

apc_bin_dumpfile(array $files,array $user_vars,string $filename[,int $flags= 0[,resource $context= NULL]]): int

Outputs a binary dump of the given files and user variables from the APC cache to the named file.

参数

$files: The file names being dumped.
$user_vars: The user variables being dumped.
$filename: The filename where the dump is being saved.
$flags: Flags passed to the$filenamestream. See the file_put_contents() documentation for details.
$context: The context passed to the$filenamestream. See the file_put_contents() documentation for details.

返回值

The number of bytes written to the file, otherwise FALSE if APC is not enabled,$filenameis an invalid file name,$filenamecan't be opened, the file dump can't be completed(e.g., the hard drive is out of disk space), or an unknown error was encountered.

参见

apc_bin_dump()获取给定文件和变量的二进制文件转储。
apc_bin_load()Load a binary dump into the APC file/user cache

To prevent losing all of your APC custom user data on an apache restart, use this function along with apc_bin_loadfile to save your APC Memory Data on a restart of apache.
e.g. Write a php script to dump the file and one to re-load the file.  Call the dump script directly before stopping apache, and then call the reload script directly after starting apache.
<?php
//saveapc
   apc_bin_dumpfile(array(),null,"/path/to/my/file.data");
?>
<?php
//loadapc
   apc_bin_loadfile("/path/to/my/file.data");
?>
# wget http://www.example.com/saveapc.php
# /etc/init.d/httpd restart
# wget http://www.example.com/loadapc.php
Particularly useful if you have a custom session handler using APC for storage
Even more handy, update the httpd restart bash script to automatically make these calls for you on a restart