{"id":1411,"date":"2010-05-18T15:26:36","date_gmt":"2010-05-18T13:26:36","guid":{"rendered":"http:\/\/planetozh.com\/blog\/?p=1411"},"modified":"2010-05-18T16:45:21","modified_gmt":"2010-05-18T14:45:21","slug":"overview-of-wordpress-transients-api","status":"publish","type":"post","link":"https:\/\/planetozh.com\/blog\/2010\/05\/overview-of-wordpress-transients-api\/","title":{"rendered":"Overview of WordPress’ Transients API"},"content":{"rendered":"

There's a cool (and underused by plugins) API in WordPress: the Transients API<\/a>. Transients are temporary options, ie<\/em> options set with an expiration time. Anytime you're storing options<\/a> and they have a short life span, you should use transients instead.
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Disclaimer: I, for one, am totally underusing this API too, as it is rather new (it was introduced in WP 2.8) and I didn't update my plugins which could use it. Hopefully if you learn anything in this article, you will update your code :)<\/p>\n

Transients functions<\/h2>\n

Basically transients are options, so their API is very similar to the Options API. The three functions you'll want to use are: set_transient()<\/tt>, get_transient()<\/tt>, delete_transient()<\/tt>.<\/p>\n

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  1. \/\/ Save a transient to the DB<\/span><\/div><\/li>\n
  2. set_transient(<\/span> $transient_name<\/span>,<\/span> $transient_value<\/span>,<\/span> $expiration<\/span> )<\/span>;<\/span><\/div><\/li>\n
  3.  <\/div><\/li>\n
  4. \/\/ Get value of a transient from the DB<\/span><\/div><\/li>\n
  5. $value<\/span> =<\/span> get_transient(<\/span> $transient_name<\/span> )<\/span>;<\/span><\/div><\/li>\n
  6.  <\/div><\/li>\n
  7. \/\/ Delete a transient from the DB<\/span><\/div><\/li>\n
  8. delete_transient(<\/span> $transient_name<\/span> )<\/span>;<\/span><\/div><\/li>\n<\/ol>\t<\/div>\n\n<\/div>\n\n

    Things to do or know:<\/p>\n