add_rewrite_endpoint( string $name, int $places, string|bool $query_var = true )

Adds an endpoint, like /trackback/.

Contents

Description

Adding an endpoint creates extra rewrite rules for each of the matching places specified by the provided bitmask. For example:

add_rewrite_endpoint( 'json', EP_PERMALINK | EP_PAGES );

will add a new rewrite rule ending with "json(/(.*))?/?$" for every permastruct that describes a permalink (post) or page. This is rewritten to "json=$match" where $match is the part of the URL matched by the endpoint regex (e.g. "foo" in "[permalink]/json/foo/").

A new query var with the same name as the endpoint will also be created.

When specifying $places ensure that you are using the EP_* constants (or a combination of them using the bitwise OR operator) as their values are not guaranteed to remain static (especially EP_ALL).

Be sure to flush the rewrite rules – see flush_rewrite_rules() – when your plugin gets activated and deactivated.

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Parameters

$name string Required
Name of the endpoint.
$places int Required
Endpoint mask describing the places the endpoint should be added.
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
$query_var string|bool Optional
Name of the corresponding query variable. Pass false to skip registering a query_var for this endpoint. Defaults to the value of $name.

Default: true

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More Information

This adds the endpoint to all link types indicated (e.g. posts, pages, category, author, search) and then template-loader.php includes the relevant handler file. The name of the endpoint is added as query variable and this gets as value any text present after the endpoint name, separated from the name with a ‘/’. The template_redirect action hook should test this query variable. This can be used for all sorts of things:
  • ajax handler
  • form submission handler
  • alternative notification handler

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Source

File: wp-includes/rewrite.php. View all references 

function add_rewrite_endpoint( $name, $places, $query_var = true ) {
	global $wp_rewrite;
	$wp_rewrite->add_endpoint( $name, $places, $query_var );
}

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Changelog

Changelog
Version Description
4.3.0 Added support for skipping query var registration by passing false to $query_var.
2.1.0 Introduced.

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User Contributed Notes

  1. Skip to note 1 content
    You must log in to vote on the helpfulness of this noteVote results for this note: 5You must log in to vote on the helpfulness of this note
    Contributed by crstauf —

    Available values for $places:

    EP_NONE
    Endpoint Mask for default, which is nothing.
    Bitwise value: 0

    EP_PERMALINK
    Endpoint Mask for Permalink.
    Bitwise value: 1

    EP_ATTACHMENT
    Endpoint Mask for Attachment.
    Bitwise value: 2

    EP_DATE
    Endpoint Mask for date.
    Bitwise value: 4

    EP_YEAR
    Endpoint Mask for year
    Bitwise value: 8

    EP_MONTH
    Endpoint Mask for month.
    Bitwise value: 16

    EP_DAY
    Endpoint Mask for day.
    Bitwise value: 32

    EP_ROOT
    Endpoint Mask for root.
    Bitwise value: 64

    EP_COMMENTS
    Endpoint Mask for comments.
    Bitwise value: 128

    EP_SEARCH
    Endpoint Mask for searches.
    Bitwise value: 256

    EP_CATEGORIES
    Endpoint Mask for categories.
    Bitwise value: 512

    EP_TAGS
    Endpoint Mask for tags.
    Bitwise value: 1024

    EP_AUTHORS
    Endpoint Mask for authors.
    Bitwise value: 2048

    EP_PAGES
    Endpoint Mask for pages.
    Bitwise value: 4096

    EP_ALL_ARCHIVES
    Endpoint Mask for all archive views.
    Same as using EP_DATE | EP_YEAR | EP_MONTH | EP_DAY | EP_CATEGORIES | EP_TAGS | EP_AUTHORS

    EP_ALL
    Endpoint Mask for everything.
    Same as using EP_PERMALINK | EP_ATTACHMENT | EP_ROOT | EP_COMMENTS | EP_SEARCH | EP_PAGES | EP_ALL_ARCHIVES

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