662 lines
19 KiB
PHP
662 lines
19 KiB
PHP
<?php
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/**
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* WordPress Rewrite API
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*
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* @package WordPress
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* @subpackage Rewrite
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*/
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/**
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* Endpoint mask that matches nothing.
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*
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* @since 2.1.0
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*/
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define( 'EP_NONE', 0 );
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/**
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* Endpoint mask that matches post permalinks.
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*
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* @since 2.1.0
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*/
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define( 'EP_PERMALINK', 1 );
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/**
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* Endpoint mask that matches attachment permalinks.
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*
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* @since 2.1.0
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*/
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define( 'EP_ATTACHMENT', 2 );
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/**
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* Endpoint mask that matches any date archives.
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*
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* @since 2.1.0
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*/
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define( 'EP_DATE', 4 );
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/**
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* Endpoint mask that matches yearly archives.
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*
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* @since 2.1.0
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*/
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define( 'EP_YEAR', 8 );
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/**
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* Endpoint mask that matches monthly archives.
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*
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* @since 2.1.0
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*/
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define( 'EP_MONTH', 16 );
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/**
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* Endpoint mask that matches daily archives.
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*
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* @since 2.1.0
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*/
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define( 'EP_DAY', 32 );
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/**
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* Endpoint mask that matches the site root.
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*
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* @since 2.1.0
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*/
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define( 'EP_ROOT', 64 );
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/**
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* Endpoint mask that matches comment feeds.
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*
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* @since 2.1.0
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*/
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define( 'EP_COMMENTS', 128 );
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/**
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* Endpoint mask that matches searches.
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*
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* Note that this only matches a search at a "pretty" URL such as
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* `/search/my-search-term`, not `?s=my-search-term`.
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*
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* @since 2.1.0
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*/
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define( 'EP_SEARCH', 256 );
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/**
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* Endpoint mask that matches category archives.
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*
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* @since 2.1.0
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*/
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define( 'EP_CATEGORIES', 512 );
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/**
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* Endpoint mask that matches tag archives.
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*
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* @since 2.3.0
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*/
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define( 'EP_TAGS', 1024 );
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/**
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* Endpoint mask that matches author archives.
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*
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* @since 2.1.0
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*/
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define( 'EP_AUTHORS', 2048 );
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/**
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* Endpoint mask that matches pages.
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*
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* @since 2.1.0
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*/
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define( 'EP_PAGES', 4096 );
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/**
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* Endpoint mask that matches all archive views.
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*
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* @since 3.7.0
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*/
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define( 'EP_ALL_ARCHIVES', EP_DATE | EP_YEAR | EP_MONTH | EP_DAY | EP_CATEGORIES | EP_TAGS | EP_AUTHORS );
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/**
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* Endpoint mask that matches everything.
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*
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* @since 2.1.0
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*/
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define( 'EP_ALL', EP_PERMALINK | EP_ATTACHMENT | EP_ROOT | EP_COMMENTS | EP_SEARCH | EP_PAGES | EP_ALL_ARCHIVES );
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/**
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* Adds a rewrite rule that transforms a URL structure to a set of query vars.
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*
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* Any value in the $after parameter that isn't 'bottom' will result in the rule
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* being placed at the top of the rewrite rules.
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*
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* @since 2.1.0
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* @since 4.4.0 Array support was added to the `$query` parameter.
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*
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* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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*
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* @param string $regex Regular expression to match request against.
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* @param string|array $query The corresponding query vars for this rewrite rule.
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* @param string $after Optional. Priority of the new rule. Accepts 'top'
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* or 'bottom'. Default 'bottom'.
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*/
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function add_rewrite_rule( $regex, $query, $after = 'bottom' ) {
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global $wp_rewrite;
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$wp_rewrite->add_rule( $regex, $query, $after );
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}
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/**
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* Adds a new rewrite tag (like %postname%).
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*
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* The `$query` parameter is optional. If it is omitted you must ensure that you call
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* this on, or before, the {@see 'init'} hook. This is because `$query` defaults to
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* `$tag=`, and for this to work a new query var has to be added.
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*
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* @since 2.1.0
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*
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* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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* @global WP $wp Current WordPress environment instance.
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*
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* @param string $tag Name of the new rewrite tag.
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* @param string $regex Regular expression to substitute the tag for in rewrite rules.
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* @param string $query Optional. String to append to the rewritten query. Must end in '='. Default empty.
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*/
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function add_rewrite_tag( $tag, $regex, $query = '' ) {
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// Validate the tag's name.
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if ( strlen( $tag ) < 3 || '%' !== $tag[0] || '%' !== $tag[ strlen( $tag ) - 1 ] ) {
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return;
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}
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global $wp_rewrite, $wp;
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if ( empty( $query ) ) {
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$qv = trim( $tag, '%' );
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$wp->add_query_var( $qv );
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$query = $qv . '=';
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}
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$wp_rewrite->add_rewrite_tag( $tag, $regex, $query );
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}
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/**
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* Removes an existing rewrite tag (like %postname%).
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*
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* @since 4.5.0
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*
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* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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*
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* @param string $tag Name of the rewrite tag.
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*/
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function remove_rewrite_tag( $tag ) {
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global $wp_rewrite;
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$wp_rewrite->remove_rewrite_tag( $tag );
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}
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/**
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* Adds a permalink structure.
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*
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* @since 3.0.0
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*
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* @see WP_Rewrite::add_permastruct()
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* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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*
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* @param string $name Name for permalink structure.
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* @param string $struct Permalink structure.
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* @param array $args Optional. Arguments for building the rules from the permalink structure,
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* see WP_Rewrite::add_permastruct() for full details. Default empty array.
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*/
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function add_permastruct( $name, $struct, $args = array() ) {
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global $wp_rewrite;
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// Back-compat for the old parameters: $with_front and $ep_mask.
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if ( ! is_array( $args ) ) {
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$args = array( 'with_front' => $args );
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}
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if ( func_num_args() === 4 ) {
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$args['ep_mask'] = func_get_arg( 3 );
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}
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$wp_rewrite->add_permastruct( $name, $struct, $args );
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}
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/**
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* Removes a permalink structure.
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*
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* Can only be used to remove permastructs that were added using add_permastruct().
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* Built-in permastructs cannot be removed.
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*
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* @since 4.5.0
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*
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* @see WP_Rewrite::remove_permastruct()
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* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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*
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* @param string $name Name for permalink structure.
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*/
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function remove_permastruct( $name ) {
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global $wp_rewrite;
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$wp_rewrite->remove_permastruct( $name );
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}
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/**
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* Adds a new feed type like /atom1/.
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*
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* @since 2.1.0
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*
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* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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*
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* @param string $feedname Feed name.
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* @param callable $callback Callback to run on feed display.
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* @return string Feed action name.
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*/
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function add_feed( $feedname, $callback ) {
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global $wp_rewrite;
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if ( ! in_array( $feedname, $wp_rewrite->feeds, true ) ) {
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$wp_rewrite->feeds[] = $feedname;
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}
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$hook = 'do_feed_' . $feedname;
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// Remove default function hook.
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remove_action( $hook, $hook );
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add_action( $hook, $callback, 10, 2 );
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return $hook;
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}
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/**
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* Removes rewrite rules and then recreate rewrite rules.
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*
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* @since 3.0.0
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*
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* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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*
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* @param bool $hard Whether to update .htaccess (hard flush) or just update
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* rewrite_rules option (soft flush). Default is true (hard).
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*/
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function flush_rewrite_rules( $hard = true ) {
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global $wp_rewrite;
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if ( is_callable( array( $wp_rewrite, 'flush_rules' ) ) ) {
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$wp_rewrite->flush_rules( $hard );
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}
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}
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/**
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* Adds an endpoint, like /trackback/.
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*
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* Adding an endpoint creates extra rewrite rules for each of the matching
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* places specified by the provided bitmask. For example:
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*
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* add_rewrite_endpoint( 'json', EP_PERMALINK | EP_PAGES );
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*
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* will add a new rewrite rule ending with "json(/(.*))?/?$" for every permastruct
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* that describes a permalink (post) or page. This is rewritten to "json=$match"
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* where $match is the part of the URL matched by the endpoint regex (e.g. "foo" in
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* "[permalink]/json/foo/").
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*
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* A new query var with the same name as the endpoint will also be created.
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*
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* When specifying $places ensure that you are using the EP_* constants (or a
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* combination of them using the bitwise OR operator) as their values are not
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* guaranteed to remain static (especially `EP_ALL`).
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*
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* Be sure to flush the rewrite rules - see flush_rewrite_rules() - when your plugin gets
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* activated and deactivated.
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*
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* @since 2.1.0
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* @since 4.3.0 Added support for skipping query var registration by passing `false` to `$query_var`.
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*
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* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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*
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* @param string $name Name of the endpoint.
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* @param int $places Endpoint mask describing the places the endpoint should be added.
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* Accepts a mask of:
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* - `EP_ALL`
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* - `EP_NONE`
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* - `EP_ALL_ARCHIVES`
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* - `EP_ATTACHMENT`
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* - `EP_AUTHORS`
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* - `EP_CATEGORIES`
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* - `EP_COMMENTS`
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* - `EP_DATE`
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* - `EP_DAY`
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* - `EP_MONTH`
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* - `EP_PAGES`
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* - `EP_PERMALINK`
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* - `EP_ROOT`
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* - `EP_SEARCH`
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* - `EP_TAGS`
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* - `EP_YEAR`
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* @param string|bool $query_var Name of the corresponding query variable. Pass `false` to skip registering a query_var
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* for this endpoint. Defaults to the value of `$name`.
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*/
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function add_rewrite_endpoint( $name, $places, $query_var = true ) {
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global $wp_rewrite;
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$wp_rewrite->add_endpoint( $name, $places, $query_var );
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}
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/**
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* Filters the URL base for taxonomies.
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*
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* To remove any manually prepended /index.php/.
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*
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* @access private
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* @since 2.6.0
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*
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* @param string $base The taxonomy base that we're going to filter
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* @return string
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*/
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function _wp_filter_taxonomy_base( $base ) {
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if ( ! empty( $base ) ) {
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$base = preg_replace( '|^/index\.php/|', '', $base );
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$base = trim( $base, '/' );
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}
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return $base;
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}
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/**
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* Resolves numeric slugs that collide with date permalinks.
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*
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* Permalinks of posts with numeric slugs can sometimes look to WP_Query::parse_query()
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* like a date archive, as when your permalink structure is `/%year%/%postname%/` and
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* a post with post_name '05' has the URL `/2015/05/`.
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*
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* This function detects conflicts of this type and resolves them in favor of the
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* post permalink.
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*
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* Note that, since 4.3.0, wp_unique_post_slug() prevents the creation of post slugs
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* that would result in a date archive conflict. The resolution performed in this
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* function is primarily for legacy content, as well as cases when the admin has changed
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* the site's permalink structure in a way that introduces URL conflicts.
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*
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* @since 4.3.0
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*
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* @param array $query_vars Optional. Query variables for setting up the loop, as determined in
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* WP::parse_request(). Default empty array.
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* @return array Returns the original array of query vars, with date/post conflicts resolved.
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*/
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function wp_resolve_numeric_slug_conflicts( $query_vars = array() ) {
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if ( ! isset( $query_vars['year'] ) && ! isset( $query_vars['monthnum'] ) && ! isset( $query_vars['day'] ) ) {
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return $query_vars;
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}
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// Identify the 'postname' position in the permastruct array.
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$permastructs = array_values( array_filter( explode( '/', get_option( 'permalink_structure' ) ) ) );
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$postname_index = array_search( '%postname%', $permastructs, true );
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if ( false === $postname_index ) {
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return $query_vars;
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}
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/*
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* A numeric slug could be confused with a year, month, or day, depending on position. To account for
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* the possibility of post pagination (eg 2015/2 for the second page of a post called '2015'), our
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* `is_*` checks are generous: check for year-slug clashes when `is_year` *or* `is_month`, and check
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* for month-slug clashes when `is_month` *or* `is_day`.
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*/
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$compare = '';
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if ( 0 === $postname_index && ( isset( $query_vars['year'] ) || isset( $query_vars['monthnum'] ) ) ) {
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$compare = 'year';
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} elseif ( $postname_index && '%year%' === $permastructs[ $postname_index - 1 ] && ( isset( $query_vars['monthnum'] ) || isset( $query_vars['day'] ) ) ) {
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$compare = 'monthnum';
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} elseif ( $postname_index && '%monthnum%' === $permastructs[ $postname_index - 1 ] && isset( $query_vars['day'] ) ) {
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$compare = 'day';
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}
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if ( ! $compare ) {
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return $query_vars;
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}
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// This is the potentially clashing slug.
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$value = '';
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if ( $compare && array_key_exists( $compare, $query_vars ) ) {
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$value = $query_vars[ $compare ];
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}
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$post = get_page_by_path( $value, OBJECT, 'post' );
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if ( ! ( $post instanceof WP_Post ) ) {
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return $query_vars;
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}
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// If the date of the post doesn't match the date specified in the URL, resolve to the date archive.
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if ( preg_match( '/^([0-9]{4})\-([0-9]{2})/', $post->post_date, $matches ) && isset( $query_vars['year'] ) && ( 'monthnum' === $compare || 'day' === $compare ) ) {
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// $matches[1] is the year the post was published.
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if ( (int) $query_vars['year'] !== (int) $matches[1] ) {
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return $query_vars;
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}
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// $matches[2] is the month the post was published.
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if ( 'day' === $compare && isset( $query_vars['monthnum'] ) && (int) $query_vars['monthnum'] !== (int) $matches[2] ) {
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return $query_vars;
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}
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}
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/*
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* If the located post contains nextpage pagination, then the URL chunk following postname may be
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* intended as the page number. Verify that it's a valid page before resolving to it.
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*/
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$maybe_page = '';
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if ( 'year' === $compare && isset( $query_vars['monthnum'] ) ) {
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$maybe_page = $query_vars['monthnum'];
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} elseif ( 'monthnum' === $compare && isset( $query_vars['day'] ) ) {
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$maybe_page = $query_vars['day'];
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}
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// Bug found in #11694 - 'page' was returning '/4'.
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$maybe_page = (int) trim( $maybe_page, '/' );
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$post_page_count = substr_count( $post->post_content, '<!--nextpage-->' ) + 1;
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// If the post doesn't have multiple pages, but a 'page' candidate is found, resolve to the date archive.
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if ( 1 === $post_page_count && $maybe_page ) {
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return $query_vars;
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}
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// If the post has multiple pages and the 'page' number isn't valid, resolve to the date archive.
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if ( $post_page_count > 1 && $maybe_page > $post_page_count ) {
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return $query_vars;
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}
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// If we've gotten to this point, we have a slug/date clash. First, adjust for nextpage.
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if ( '' !== $maybe_page ) {
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$query_vars['page'] = (int) $maybe_page;
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}
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// Next, unset autodetected date-related query vars.
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unset( $query_vars['year'] );
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unset( $query_vars['monthnum'] );
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unset( $query_vars['day'] );
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// Then, set the identified post.
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$query_vars['name'] = $post->post_name;
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// Finally, return the modified query vars.
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return $query_vars;
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}
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/**
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* Examines a URL and try to determine the post ID it represents.
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*
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* Checks are supposedly from the hosted site blog.
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*
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* @since 1.0.0
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*
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* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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* @global WP $wp Current WordPress environment instance.
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*
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* @param string $url Permalink to check.
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* @return int Post ID, or 0 on failure.
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*/
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function url_to_postid( $url ) {
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global $wp_rewrite;
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/**
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* Filters the URL to derive the post ID from.
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*
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* @since 2.2.0
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*
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* @param string $url The URL to derive the post ID from.
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*/
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$url = apply_filters( 'url_to_postid', $url );
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$url_host = parse_url( $url, PHP_URL_HOST );
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if ( is_string( $url_host ) ) {
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$url_host = str_replace( 'www.', '', $url_host );
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} else {
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$url_host = '';
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}
|
|
|
|
$home_url_host = parse_url( home_url(), PHP_URL_HOST );
|
|
|
|
if ( is_string( $home_url_host ) ) {
|
|
$home_url_host = str_replace( 'www.', '', $home_url_host );
|
|
} else {
|
|
$home_url_host = '';
|
|
}
|
|
|
|
// Bail early if the URL does not belong to this site.
|
|
if ( $url_host && $url_host !== $home_url_host ) {
|
|
return 0;
|
|
}
|
|
|
|
// First, check to see if there is a 'p=N' or 'page_id=N' to match against.
|
|
if ( preg_match( '#[?&](p|page_id|attachment_id)=(\d+)#', $url, $values ) ) {
|
|
$id = absint( $values[2] );
|
|
if ( $id ) {
|
|
return $id;
|
|
}
|
|
}
|
|
|
|
// Get rid of the #anchor.
|
|
$url_split = explode( '#', $url );
|
|
$url = $url_split[0];
|
|
|
|
// Get rid of URL ?query=string.
|
|
$url_split = explode( '?', $url );
|
|
$url = $url_split[0];
|
|
|
|
// Set the correct URL scheme.
|
|
$scheme = parse_url( home_url(), PHP_URL_SCHEME );
|
|
$url = set_url_scheme( $url, $scheme );
|
|
|
|
// Add 'www.' if it is absent and should be there.
|
|
if ( str_contains( home_url(), '://www.' ) && ! str_contains( $url, '://www.' ) ) {
|
|
$url = str_replace( '://', '://www.', $url );
|
|
}
|
|
|
|
// Strip 'www.' if it is present and shouldn't be.
|
|
if ( ! str_contains( home_url(), '://www.' ) ) {
|
|
$url = str_replace( '://www.', '://', $url );
|
|
}
|
|
|
|
if ( trim( $url, '/' ) === home_url() && 'page' === get_option( 'show_on_front' ) ) {
|
|
$page_on_front = get_option( 'page_on_front' );
|
|
|
|
if ( $page_on_front && get_post( $page_on_front ) instanceof WP_Post ) {
|
|
return (int) $page_on_front;
|
|
}
|
|
}
|
|
|
|
// Check to see if we are using rewrite rules.
|
|
$rewrite = $wp_rewrite->wp_rewrite_rules();
|
|
|
|
// Not using rewrite rules, and 'p=N' and 'page_id=N' methods failed, so we're out of options.
|
|
if ( empty( $rewrite ) ) {
|
|
return 0;
|
|
}
|
|
|
|
// Strip 'index.php/' if we're not using path info permalinks.
|
|
if ( ! $wp_rewrite->using_index_permalinks() ) {
|
|
$url = str_replace( $wp_rewrite->index . '/', '', $url );
|
|
}
|
|
|
|
if ( str_contains( trailingslashit( $url ), home_url( '/' ) ) ) {
|
|
// Chop off http://domain.com/[path].
|
|
$url = str_replace( home_url(), '', $url );
|
|
} else {
|
|
// Chop off /path/to/blog.
|
|
$home_path = parse_url( home_url( '/' ) );
|
|
$home_path = isset( $home_path['path'] ) ? $home_path['path'] : '';
|
|
$url = preg_replace( sprintf( '#^%s#', preg_quote( $home_path ) ), '', trailingslashit( $url ) );
|
|
}
|
|
|
|
// Trim leading and lagging slashes.
|
|
$url = trim( $url, '/' );
|
|
|
|
$request = $url;
|
|
$post_type_query_vars = array();
|
|
|
|
foreach ( get_post_types( array(), 'objects' ) as $post_type => $t ) {
|
|
if ( ! empty( $t->query_var ) ) {
|
|
$post_type_query_vars[ $t->query_var ] = $post_type;
|
|
}
|
|
}
|
|
|
|
// Look for matches.
|
|
$request_match = $request;
|
|
foreach ( (array) $rewrite as $match => $query ) {
|
|
|
|
/*
|
|
* If the requesting file is the anchor of the match,
|
|
* prepend it to the path info.
|
|
*/
|
|
if ( ! empty( $url ) && ( $url !== $request ) && str_starts_with( $match, $url ) ) {
|
|
$request_match = $url . '/' . $request;
|
|
}
|
|
|
|
if ( preg_match( "#^$match#", $request_match, $matches ) ) {
|
|
|
|
if ( $wp_rewrite->use_verbose_page_rules && preg_match( '/pagename=\$matches\[([0-9]+)\]/', $query, $varmatch ) ) {
|
|
// This is a verbose page match, let's check to be sure about it.
|
|
$page = get_page_by_path( $matches[ $varmatch[1] ] );
|
|
if ( ! $page ) {
|
|
continue;
|
|
}
|
|
|
|
$post_status_obj = get_post_status_object( $page->post_status );
|
|
if ( ! $post_status_obj->public && ! $post_status_obj->protected
|
|
&& ! $post_status_obj->private && $post_status_obj->exclude_from_search ) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Got a match.
|
|
* Trim the query of everything up to the '?'.
|
|
*/
|
|
$query = preg_replace( '!^.+\?!', '', $query );
|
|
|
|
// Substitute the substring matches into the query.
|
|
$query = addslashes( WP_MatchesMapRegex::apply( $query, $matches ) );
|
|
|
|
// Filter out non-public query vars.
|
|
global $wp;
|
|
parse_str( $query, $query_vars );
|
|
$query = array();
|
|
foreach ( (array) $query_vars as $key => $value ) {
|
|
if ( in_array( (string) $key, $wp->public_query_vars, true ) ) {
|
|
$query[ $key ] = $value;
|
|
if ( isset( $post_type_query_vars[ $key ] ) ) {
|
|
$query['post_type'] = $post_type_query_vars[ $key ];
|
|
$query['name'] = $value;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Resolve conflicts between posts with numeric slugs and date archive queries.
|
|
$query = wp_resolve_numeric_slug_conflicts( $query );
|
|
|
|
// Do the query.
|
|
$query = new WP_Query( $query );
|
|
if ( ! empty( $query->posts ) && $query->is_singular ) {
|
|
return $query->post->ID;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|