What is WordPress Hook: rest_oembed_ttl
The rest_oembed_ttl hook in WordPress is used to modify the time-to-live (TTL) value for oEmbed caches. This hook allows developers to adjust the duration for which oEmbed caches are stored before they expire.
Understanding the Hook: rest_oembed_ttl
The rest_oembed_ttl hook is located within the wp-includes/embed.php file in WordPress. It is specifically used to filter the TTL value for oEmbed caches, allowing developers to customize the duration for which oEmbed caches are valid.
Hook Parameters (if applicable): rest_oembed_ttl
The rest_oembed_ttl hook does not accept any parameters. It is a simple filter hook that allows developers to modify the TTL value directly without the need for additional arguments.
Hook Doesn’t Work: rest_oembed_ttl
If the rest_oembed_ttl hook doesn’t seem to be working, it could be due to conflicts with other plugins or themes that are also modifying the oEmbed cache TTL. In such cases, it is recommended to deactivate other plugins or switch to a default theme to isolate the issue and troubleshoot accordingly.
Best Practices & Usage Notes (if applicable): rest_oembed_ttl
When using the rest_oembed_ttl hook, it is important to consider the impact on server performance and caching. Modifying the TTL value too frequently or setting it to a very low value could result in increased server load due to frequent oEmbed cache regeneration.
Usage Example: rest_oembed_ttl
“`php
function custom_oembed_ttl( $ttl ) {
// Set the oEmbed cache TTL to 1 day (in seconds)
return 86400;
}
add_filter( ‘rest_oembed_ttl’, ‘custom_oembed_ttl’ );
“`
