theme_templates filter-hook . WP 4.9.6

Filters list of page templates for a theme.

Usage

add_filter( 'theme_templates', 'filter_function_name_7991', 10, 4 );
function filter_function_name_7991( $post_templates, $this, $post, $post_type ){
	// filter...

	return $post_templates;
}

$post_templates(string[])

Array of page templates. Keys are filenames, values are translated names.

$this(WP_Theme)

The theme object.

$post(WP_Post/null)

The post being edited, provided for context, or null.

$post_type(string)

Post type to get the templates for.

Where the hook is called

$post_templates = (array) apply_filters( 'theme_templates', $post_templates, $this, $post, $post_type );

Where the hook is used (in WP core)