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APCu Manager
Command Line Reference

APCu Manager is fully usable from command-line, thanks to WP-CLI. You can set APCu Manager options and much more, without using a web browser.

  1. Obtaining statistics about APCu usage - wp apcu analytics
  2. Getting APCu Manager status - wp apcu status
  3. Managing main settings - wp apcu settings
  4. Misc flags

Obtaining statistics about APCu usage

You can get APCu analytics for today (compared with yesterday). To do that, use the wp apcu analytics command.

By default, the outputted format is a simple table. If you want to customize the format, just use --format=<format>. Note if you choose json or yaml as format, the output will contain full data and metadata for the current day.


To display APCu analytics, type the following command:

pierre@dev:~$ wp apcu analytics
| kpi          | description                                   | value | ratio  | variation |
| Hits         | Successful calls to the cache.                | 11K   | 81.51% | +0.68%    |
| Free memory  | Free memory available for APCu.               | 32MB  | 99.53% | +0.18%    |
| Keys         | Keys allocated by APCu.                       | 152   | 3.7%   | -0.38%    |
| Small blocks | Used memory small blocks (size < 5K).         | 29    | 0.38%  | +90.31%   |
| Availability | Extrapolated availability time over 24 hours. | 24 hr | 100%   | 0%        |
| Objects      | Objects currently present in cache.           | 152   | -      | -0.38%    |

Getting APCu Manager status

To get detailed status and operation mode, use the wp apcu status command.

Note this command may tell you APCu is not activated for command-line even if it's available for WordPress itself. It is due to the fact that PHP configuration is often different between command-line and web server.

Nevertheless, if APCu is available for WordPress, other APCu Manager commands are operational.

Managing main settings

To toggle on/off main settings, use wp apcu settings <enable|disable> <object-caching|gc|analytics|metrics>.

If you try to disable a setting, wp-cli will ask you to confirm. To force answer to yes without prompting, just use --yes.

Available settings

  • object-caching: WordPress object caching feature
  • gc: garbage collection feature
  • analytics: analytics feature
  • metrics: metrics collation


To disable garbage collection without confirmation prompt, type the following command:

pierre@dev:~$ wp apcu settings disable gc --yes
Success: garbage collection is now deactivated.

Misc flags

For most commands, APCu Manager lets you use the following flags:

  • --yes: automatically answer "yes" when a question is prompted during the command execution.
  • --stdout: outputs a clean STDOUT string so you can pipe or store result of command execution.

It's not mandatory to use --stdout when using --format=count or --format=ids: in such cases --stdout is assumed.

Note APCu Manager sets exit code so you can use $? to write scripts.
To know the meaning of APCu Manager exit codes, just use the command wp apcu exitcode list.


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Support & Help

I’ll be glad to help you if you encounter issues with this plugin. Just use the support section of the WordPress directory.