Ryan Welcher

We all know that caching is FTW. But, caching can be a nuisance when trying to develop or debug. That’s where this plugin comes in. 
You can bypass any get_transient() calls on a per page basis by clicking the link in the Admin Bar.
Features:
<ol>
<li>Bypass Transients with a single click</li>
<li>Supports Transients saved to the database</li>
<li>Object Cache support – currently only tested with memecached</li>
<li>Will automatically detected any new transients set.</li>
<li>Debug Bar integration to provide details such as lists of known, found and bypassed transients.</li>
</ol>
Usage:
Install and activate the plugin as normal. Suspend transients will loading the appropriate class based on the results <code>wp_using_ext_object_cache()</code>. Anytime a transient set, the plugin will detect it and add it to the 
known list.
Standard Transients ( saved to the database )
When activated, the plugin will retrieve any existing transients from the database and add them to the known transients list.
The Admin Bar will have two new buttons:
<ol>
<li>Bypass Transients: bypasses known transients</li>
<li>Scan Transients: reloads the transients from the database.</li>
</ol>
Object Cached Transients ( i.e memcached ) 
These transients are not stored in the database so the best way to get them is to use the Flush Transients button and reload the page to utilize the transient detection feature of the plugin. 
It may require two page loads; One to detect and add the transient, and then a second to actually bypass it.
Admin Bar buttons:
<ol>
<li>Bypass Transients: bypasses known transients</li>
<li>Flush Transients: Calls wp_object_cache_flush() to invalidate the caches.</li>
</ol>
Disclaimer 
This plugin should NOT be run in a production environment. It is meant for local and MAYBE staging development. By it’s very nature this will slow 
your site down.

Bypass Transients

Bypass any get_transient() calls on a per page basis by clicking the link in the Admin Bar.

webaware

Delete old, expired transients from the WordPress options table (<code>wp_options</code>), to prevent them from bloating your database and even slowing down your website.
Unless you are using an object cache (like memcached), WordPress stores transient records in the options table. Many transients are given an expiration time, so in theory they should disappear after some time. In practise, because old transients are only deleted when requested again after they’ve expired, many transients stay in the database. After a while, there can be thousands or even millions of expired transients needlessly taking up space in your options table, depending on what your plugins are doing.
Delete Expired Transients schedules a daily task to delete any expired transients from the options table. It performs this operation with a single SQL query, and then runs a second query to find any orphaned expiration records and deletes them too.
There are a few other plugins around that clean up expired transients. This one is written for fast performance, set-and-forget scheduled housekeeping, and maximum compatibility. It uses the PHP time to determine whether transients are expired, not the database time (which can be different). It does only one job, and it does it well with the minimum of resources.
Now optimised for WordPress Multisite.
<h3>Translations</h3>
Many thanks to the generous efforts of our translators:
<ul>
<li>English (en_CA) — <a href="https://translate.wordpress.org/locale/en-ca/default/wp-plugins/delete-expired-transients" rel="nofollow ugc">the English (Canadian) translation team</a></li>
<li>English (en_GB) — <a href="https://translate.wordpress.org/locale/en-gb/default/wp-plugins/delete-expired-transients" rel="nofollow ugc">the English (British) translation team</a></li>
<li>English (en_ZA) — <a href="https://translate.wordpress.org/locale/en-za/default/wp-plugins/delete-expired-transients" rel="nofollow ugc">the English (South African) translation team</a></li>
<li>French (fr_FR) — <a href="https://translate.wordpress.org/locale/fr/default/wp-plugins/delete-expired-transients" rel="nofollow ugc">the French translation team</a></li>
<li>Hungarian (hu_HU) — <a href="https://translate.wordpress.org/locale/hu/default/wp-plugins/delete-expired-transients" rel="nofollow ugc">the Hungarian translation team</a></li>
<li>Norwegian: Bokmål (nb_NO) — <a href="https://www.neonnero.com/" rel="nofollow ugc">neonnero</a></li>
<li>Norwegian: Nynorsk (nn_NO) — <a href="https://www.neonnero.com/" rel="nofollow ugc">neonnero</a></li>
<li>Russian (ru_RU) — <a href="https://translate.wordpress.org/locale/ru/default/wp-plugins/delete-expired-transients" rel="nofollow ugc">the Russian translation team</a></li>
<li>Spanish (es_ES) — <a href="https://translate.wordpress.org/locale/es/default/wp-plugins/delete-expired-transients" rel="nofollow ugc">the Spanish translation team</a></li>
</ul>
If you’d like to help out by translating this plugin, please <a href="https://translate.wordpress.org/projects/wp-plugins/delete-expired-transients" rel="nofollow ugc">sign up for an account and dig in</a>.
<h3>Contributions</h3>
<ul>
<li><a href="https://translate.wordpress.org/projects/wp-plugins/delete-expired-transients" rel="nofollow ugc">Translate into your preferred language</a></li>
<li><a href="https://github.com/webaware/delete-expired-transients" rel="nofollow ugc">Fork me on GitHub</a></li>
</ul>
<h3>Privacy</h3>
Delete Expired Transients does not collect any personally identifying information, and does not set any cookies. It removes some old information from the database, potentially reducing a website’s exposure to leakage of personally identifying information.

Delete Expired Transients

Now and then, I run across a plugin that is simple, well-designed and fills a need painlessly and efficiently. Delete Expired Transients is just such a plugin.
I have a client whose site uses the Diverse Solutions dsIDXPress plugin, which was bloating the options table in the database with thousands of records containing expired transients. Delete Expired Transients cleaned out the options table and keeps it cleaned out. 
Thanks for a great plugin!



Thanks for a Great Plugin!

Given the preponderance of MySQL-backed transient storage installations, this or something like it really should be part of Codex.



A useful and much needed-plugin

Still works great, perfect on Multisite...

Still works great


easy to use. 簡単に利用できる。


useful plugin

Delete old, expired transients from WordPress wp_options table

Bypass Transients vs Delete Expired Transients