Issue Description

The documentation for the WP_Query class is missing the title parameter.

URL of the Page with the Issue

https://developer.wordpress.org/reference/classes/wp_query/

Section of Page with the issue

I think this would best fit under the "Post & Page Parameters" section.

Why is this a problem?

WordPress 4.4 added the parameter to WP_Query to retrieve posts by their title (post_title), however it is not currently in the documentation for the class. It's especially note-worthy that the parameter is title and not post_title, and also that it must be an exact match (the generated SQL clause uses equals, for example: 'post_title' = 'Hello World!')

Code where this parameter is applied: https://github.com/WordPress/wordpress-develop/blob/6.4/src/wp-includes/class-wp-query.php#L2134

Suggested Fix

In the "Post & Page Parameters" section, at the end of the ul we can add:

• title (string) – use post title. Retrieve posts by post_title (available since version 4.4).

Then we can add an example, within the same section:

Display posts with a specific title:

$query = new WP_Query( array( 'title' => 'Hello World!' ) );

Note the title must be an exact match.