What is WordPress Hook: removable_query_args
The removable_query_args hook in WordPress is used to modify the list of query variables that are considered “removable” for the purposes of determining whether a request is a 404 error. This hook allows developers to add or remove query variables from the list of removable query arguments.
Understanding the Hook: removable_query_args
The removable_query_args hook is located within the WP class in the /wp-includes/class-wp.php file. It is called by the WP::parse_request() method, which is responsible for parsing the request to determine which query variables are present and whether the request should result in a 404 error.
Hook Parameters (if applicable): removable_query_args
The removable_query_args hook does not accept any arguments or parameters.
Hook Doesn’t Work: removable_query_args
If the removable_query_args hook doesn’t seem to be working as expected, it could be due to a conflict with another plugin or theme that is also modifying the list of removable query arguments. To troubleshoot this issue, try disabling other plugins or switching to a default theme to see if the problem persists.
Best Practices & Usage Notes (if applicable): removable_query_args
When using the removable_query_args hook, it’s important to be mindful of the potential impact on the overall performance and behavior of the WordPress site. Adding or removing query variables from the list of removable query arguments can affect how requests are processed and whether they result in a 404 error.
removable_query_args Usage Example: removable_query_args
“`php
function custom_removable_query_args( $removable_query_args ) {
// Add a custom query variable to the list of removable query arguments
$removable_query_args[] = ‘custom_var’;
return $removable_query_args;
}
add_filter( ‘removable_query_args’, ‘custom_removable_query_args’ );
“`
