Keyword Analysis & Research: wordpress meta query serialized data


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Frequently Asked Questions

What is WP_meta_query and how to use it?

WP_Meta_Query is a class defined in wp-includes/meta.php that generates the necessary SQL for meta-related queries. It was introduced in Version 3.2.0 and greatly improved the possibility to query posts by custom fields. In the WP core, it’s used in the WP_Query and WP_User_Query classes, and since Version 3.5 in the WP_Comment_Query class.

What is metameta_query (array)?

meta_query (array) – Contains one or more arrays with the following keys: key (string) – Custom field key. value (string | array) – Custom field value. It can be an array only when compare is 'IN', 'NOT IN', 'BETWEEN', or 'NOT BETWEEN'.

Why are post meta queries so expensive to do?

Aside from the costs of partial string searches, post meta queries are slow, and serialised data can change depending on things such as the length of contents, making searching incredibly expensive, if not impossible depending on the value you're searching for What About LIKE?

How to query multiple post meta with the same name?

Then you'll be able to query as you want with individual keys If you need to store multiple longitudes, and multiple latitudes, you can store multiple post meta with the same name. Simply use the third parameter of get_post_meta, and it will return them all as an array


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