What is WordPress Hook: parse_query
The parse_query hook in WordPress is used to modify the query variables before the query is executed. It allows developers to change the parameters of the query based on specific conditions or requirements.
Understanding the Hook: parse_query
The parse_query hook is located within the parse_query() function in the WordPress core. This function is responsible for parsing the query variables and preparing the query for execution. The hook is called after the query variables have been parsed and before the query is executed.
Hook Parameters (if applicable): parse_query
The parse_query hook does not accept any arguments or parameters.
Hook Doesn’t Work: parse_query
If the parse_query hook doesn’t work as expected, it could be due to a conflict with other plugins or themes that modify the query variables. It is recommended to deactivate other plugins and switch to a default theme to troubleshoot the issue. Additionally, double-check the code to ensure that the hook is being used correctly.
Best Practices & Usage Notes (if applicable): parse_query
When using the parse_query hook, it is important to consider the impact of modifying the query variables on the overall performance and functionality of the website. It is best practice to only make necessary modifications to the query variables and to thoroughly test any changes to ensure they do not cause unexpected behavior.
parse_query Usage Example: parse_query
“`php
function custom_parse_query( $query ) {
if ( $query->is_main_query() && $query->is_category() ) {
$query->set( ‘posts_per_page’, 10 );
}
}
add_action( ‘parse_query’, ‘custom_parse_query’ );
“`
In this example, the parse_query hook is used to modify the number of posts displayed on category archive pages. The custom_parse_query function checks if the query is the main query and a category archive, then sets the posts_per_page parameter to 10.