What is WordPress Hook: in_theme_update_message-{$theme_key}

The in_theme_update_message-{$theme_key} hook in WordPress is used to display a custom update message for a specific theme. This hook allows developers to customize the update message that is shown when a new version of a theme is available.

Understanding the Hook: in_theme_update_message-{$theme_key}

The in_theme_update_message-{$theme_key} hook is located within the update message function in WordPress. It is called when a theme update is available, and it allows developers to modify the update message before it is displayed to the user.

Hook Parameters (if applicable): in_theme_update_message-{$theme_key}

The in_theme_update_message-{$theme_key} hook does not accept any arguments or parameters.

Hook Doesn’t Work: in_theme_update_message-{$theme_key}

If the in_theme_update_message-{$theme_key} hook doesn’t work as expected, it could be due to a conflict with other themes or plugins. It is recommended to deactivate other themes and plugins one by one to identify the source of the issue. Additionally, checking for any syntax errors in the code that modifies the update message is crucial for troubleshooting.

Best Practices & Usage Notes (if applicable): in_theme_update_message-{$theme_key}

When using the in_theme_update_message-{$theme_key} hook, it is important to keep in mind that the update message should provide clear and relevant information to the user. It is also recommended to test the modified update message to ensure that it displays correctly and does not interfere with the user experience.

Usage Example: in_theme_update_message-{$theme_key}

“`php
function custom_theme_update_message( $message ) {
if ( $theme_key == ‘my-theme’ ) {
$message = “A new version of My Theme is available. Click here to update.”;
}
return $message;
}
add_filter( ‘in_theme_update_message-{$theme_key}’, ‘custom_theme_update_message’ );
“`