What is WordPress Hook: oembed_ttl
The 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 responses are cached by WordPress.
Understanding the Hook: oembed_ttl
The oembed_ttl hook is located within the wp-includes/class-oembed.php file in WordPress. It is specifically used to filter the TTL value for oEmbed caches, allowing developers to customize the caching duration for oEmbed responses.
Hook Parameters (if applicable): oembed_ttl
The oembed_ttl hook does not accept any arguments or parameters. It is a simple filter hook that allows developers to modify the TTL value directly.
Hook Doesn’t Work: oembed_ttl
If the 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 caching behavior. To troubleshoot this issue, it is recommended to deactivate other plugins and switch to a default theme to see if the hook functions as expected.
Best Practices & Usage Notes (if applicable): oembed_ttl
When using the oembed_ttl hook, it is important to consider the impact on server performance and oEmbed response freshness. Modifying the TTL value should be done carefully to ensure that cached oEmbed responses are neither too stale nor too resource-intensive to regenerate frequently.
oembed_ttl Usage Example: oembed_ttl
“`php
function custom_oembed_ttl( $ttl ) {
// Set the oEmbed cache TTL to 1 day (in seconds)
return 86400;
}
add_filter( ‘oembed_ttl’, ‘custom_oembed_ttl’ );
“`
