post_gallery filter-hook . WP 2.5.0

Filters the default gallery shortcode output.

If the filtered output isn't empty, it will be used instead of generating the default gallery template.

Usage

add_filter( 'post_gallery', 'filter_function_name_289', 10, 3 );
function filter_function_name_289( $output, $attr, $instance ){
	// filter...

	return $output;
}

$output(string)

The gallery output.
Default: ''

$attr(array)

Attributes of the gallery shortcode.

$instance(int)

Unique numeric ID of this gallery shortcode instance.

Notes

• Since 4.2.0 The $instance parameter was added.

Where the hook is called

$output = apply_filters( 'post_gallery', '', $attr, $instance );

Where the hook is used (in WP core)