Adds a new permalink structure.

Description

A permalink structure (permastruct) is an abstract definition of a set of rewrite rules; it is an easy way of expressing a set of regular expressions that rewrite to a set of query strings. The new permastruct is added to the WP_Rewrite::$extra_permastructs array.

When the rewrite rules are built by WP_Rewrite::rewrite_rules(), all of these extra permastructs are passed to WP_Rewrite::generate_rewrite_rules() which transforms them into the regular expressions that many love to hate.

The $args parameter gives you control over how WP_Rewrite::generate_rewrite_rules() works on the new permastruct.

Parameters

$namestringrequired

Name for permalink structure.

$structstringrequired

Permalink structure (e.g. category/%category%)

$argsarrayoptional

Arguments for building rewrite rules based on the permalink structure.

• with_front bool
  Whether the structure should be prepended with WP_Rewrite::$front.
  Default true.
• ep_mask int
  The endpoint mask defining which endpoints are added to the structure.
  Accepts a mask of:
  

  • EP_ALL
  • EP_NONE
  • EP_ALL_ARCHIVES
  • EP_ATTACHMENT
  • EP_AUTHORS
  • EP_CATEGORIES
  • EP_COMMENTS
  • EP_DATE
  • EP_DAY
  • EP_MONTH
  • EP_PAGES
  • EP_PERMALINK
  • EP_ROOT
  • EP_SEARCH
  • EP_TAGS
  • EP_YEAR Default EP_NONE.
• paged bool
  Whether archive pagination rules should be added for the structure.
  Default true.
• feed bool
  Whether feed rewrite rules should be added for the structure. Default true.
• forcomments bool
  Whether the feed rules should be a query for a comments feed. Default false.
• walk_dirs bool
  Whether the 'directories' making up the structure should be walked over and rewrite rules built for each in-turn. Default true.
• endpoints bool
  Whether endpoints should be applied to the generated rules. Default true.

Default:array()

Source

public function add_permastruct( $name, $struct, $args = array() ) {
	// Back-compat for the old parameters: $with_front and $ep_mask.
	if ( ! is_array( $args ) ) {
		$args = array( 'with_front' => $args );
	}

	if ( func_num_args() === 4 ) {
		$args['ep_mask'] = func_get_arg( 3 );
	}

	$defaults = array(
		'with_front'  => true,
		'ep_mask'     => EP_NONE,
		'paged'       => true,
		'feed'        => true,
		'forcomments' => false,
		'walk_dirs'   => true,
		'endpoints'   => true,
	);

	$args = array_intersect_key( $args, $defaults );
	$args = wp_parse_args( $args, $defaults );

	if ( $args['with_front'] ) {
		$struct = $this->front . $struct;
	} else {
		$struct = $this->root . $struct;
	}

	$args['struct'] = $struct;

	$this->extra_permastructs[ $name ] = $args;
}

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