What is WordPress Hook: heartbeat_send
The heartbeat_send hook is a specific hook in WordPress that allows developers to modify or add functionality to the Heartbeat API. This API enables real-time communication between the server and the browser, making it useful for tasks such as auto-saving, post locking, and more.
Understanding the Hook: heartbeat_send
The heartbeat_send hook is located within the Heartbeat API process in WordPress. It is triggered when the server sends a response to the browser, allowing developers to intercept and modify the data being sent.
Hook Parameters (if applicable): heartbeat_send
The heartbeat_send hook accepts parameters such as the response data, the user ID, and the screen ID. Developers can use these parameters to customize the behavior of the Heartbeat API based on specific user or screen conditions.
Hook Doesn’t Work: heartbeat_send
If the heartbeat_send hook doesn’t work as expected, it may be due to conflicts with other plugins or themes that also modify the Heartbeat API. It’s important to check for any errors in the code and ensure that the hook is being added in the correct location within the WordPress process.
Best Practices & Usage Notes (if applicable): heartbeat_send
When using the heartbeat_send hook, it’s important to consider the frequency and volume of data being sent between the server and the browser. Excessive use of the Heartbeat API can impact server performance, so it’s best to use the hook sparingly and efficiently.
Usage Example: heartbeat_send
“`php
function modify_heartbeat_send_data( $response, $data, $screen_id ) {
// Modify the response data based on specific conditions
return $response;
}
add_filter( ‘heartbeat_send’, ‘modify_heartbeat_send_data’, 10, 3 );
“`
