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Flush OPcache
<ul>
<li>creates a button in admin bar to flush OPcache</li>
<li>flush only files in WordPress absolute path</li>
<li>individual or bulk file invalidation</li>
<li>support both memory and file caching</li>
<li>support multisite</li>
</ul>
OPcache Statistics
<ul>
<li>memory, hits, strings and keys statistics</li>
<li>directives, functions and general informations</li>
<li>list all files</li>
<li>fully responsive</li>
</ul>
WP CLI ready
<ul>
<li>add flush-opcache command to flush cache with cli: <code>wp flush-opcache flush</code></li>
<li>don’t forget to add <code>opcache.enable_cli=1</code> to your PHP configuration</li>
</ul>
There are three tabs in admin page under Tools:
<ul>
<li>General settings: plugin settings</li>
<li>Statistics: responsive dashboard about OPcache statistics</li>
<li>Cached files: list of cached files with the possibility of invalidating them</li>
</ul>

WP OPcache

works great

Bast OPCache Manager for WordPress

Manage OPcache inside your WordPress admin dashboard.

suresupport

This plugin automatically purges the server-side cache after you make a website change such as updating a post.
The automatic purge functionality works for websites hosted on servers managed by SureSupport and using the “Server-side Caching” feature available in the hosting Control Panel.
<h3>Configuration</h3>
The plugin does not require any additional configuration. It works out of the box. Just make sure you have the “Server-side caching” feature enabled in your hosting Control Panel.
<h4>WP-CLI</h4>
You can clear the server-side cache with the following WP-CLI command:
<pre><code>wp surecache purge
</code></pre>

Server-Side Cache AutoPurge

Purge server-side cache automatically after making website changes. Optimized for servers managed by SureSupport.

WP OPcache vs Server-Side Cache AutoPurge