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apc_bin_dumpfile

(PECL apc >= 3.1.4)

apc_bin_dumpfileキャッシュされたファイルやユーザー変数のバイナリダンプをファイルに出力する

説明

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

キャッシュされたファイルやユーザー変数のバイナリダンプを APC キャッシュから取得し、指定したファイルに出力します。

パラメータ

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 filename stream. See the file_put_contents() documentation for details.

context

The context passed to the filename stream. See the file_put_contents() documentation for details.

返り値

The number of bytes written to the file, otherwise FALSE if APC is not enabled, filename is an invalid file name, filename can'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.

参考

  • apc_bin_dump() - 指定したファイルおよびユーザー変数のバイナリダンプを取得する
  • apc_bin_load() - バイナリダンプを APC のファイル/ユーザーキャッシュに読み込む
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User Contributed Notes 1 note

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eric at midkotasolutions dot com
6 years ago
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
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