PHP API

Functions

These global functions are available in any PHP context after the plugin boots.

---

wp_tosuto()

Add a toast notification to the render queue.

function wp_tosuto( string $content, array $options = [] ): string

Parameters

Name	Type	Required	Default	Description
$content	string	yes	—	HTML displayed inside the toast. Sanitized via wp_kses_post().
$options['variant']	string	no	'default'	Visual style. One of: default, success, error, warning, info.
$options['duration']	int	no	5000	Auto-dismiss delay in milliseconds.
$options['dismissable']	bool	no	true	Whether a dismiss button is shown.

Returns string — UUID of the queued toast. Pass to wp_tosuto_remove() to cancel it.

Example

$id = wp_tosuto( '<strong>Saved!</strong>', [
    'variant'     => 'success',
    'duration'    => 3000,
    'dismissable' => true,
] );

---

wp_tosuto_remove()

Remove a previously queued toast before it is rendered.

function wp_tosuto_remove( string $id ): bool

Parameters

Name	Type	Description
$id	string	UUID returned by wp_tosuto().

Returns bool — true if the toast was found and removed, false otherwise.

Example

$id = wp_tosuto( 'Processing…' );

if ( $error ) {
    wp_tosuto_remove( $id );
    wp_tosuto( 'Something went wrong.', [ 'variant' => 'error' ] );
}

---

Hooks & Filters

Hook: wp-tosuto.api.render-empty

Type: filter (apply_filters)

Controls whether an empty toast container is rendered when no toasts are queued. An empty container allows client-side actions.add() calls to work on pages where the server queued no toasts.

apply_filters( 'wp-tosuto.api.render-empty', true );

Accepted return values

Value	Behaviour
true	Render the empty container (default).
false	Render nothing.
callable	Called with no arguments; return value is used as the boolean. Accepts any WordPress template tag string (e.g. 'is_singular').
other	Coerced to bool.

Examples

// Only render on singular pages
add_filter( 'wp-tosuto.api.render-empty', 'is_singular' );

// Custom condition
add_filter( 'wp-tosuto.api.render-empty', function (): bool {
    return is_user_logged_in();
} );

// Disable entirely
add_filter( 'wp-tosuto.api.render-empty', '__return_false' );