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url_to_postid() fixes from Mark Jaquith.

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git-svn-id: https://develop.svn.wordpress.org/trunk@2665 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Ryan Boren 2005-06-27 22:02:57 +00:00
parent 83538ff38b
commit 03997fb239
1 changed files with 43 additions and 12 deletions
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55
wp-includes/functions.php
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@ -170,42 +170,73 @@ function get_usernumposts($userid) {
return $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE post_author = '$userid' AND post_status = 'publish'"); return $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE post_author = '$userid' AND post_status = 'publish'");
} }
// examine a url (supposedly from this blog) and try to // examine a url (supposedly from this blog) and try to
// determine the post ID it represents. // determine the post ID it represents.
function url_to_postid($url) { function url_to_postid($url) {
global $wp_rewrite; global $wp_rewrite;
// First, check to see if there is a 'p=N' or 'page_id=N' to match against: // First, check to see if there is a 'p=N' or 'page_id=N' to match against
preg_match('#[?&](p|page_id)=(\d+)#', $url, $values); preg_match('#[?&](p|page_id)=(\d+)#', $url, $values);
$id = intval($values[2]); $id = intval($values[2]);
if ($id) return $id; if ($id) return $id;
// URI is probably a permalink. // Check to see if we are using rewrite rules
$rewrite = $wp_rewrite->wp_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) ) if ( empty($rewrite) )
return 0; return 0;
// $url cleanup by Mark Jaquith
// This fixes things like #anchors, ?query=strings, missing 'www.',
// added 'www.', or added 'index.php/' that will mess up our WP_Query
// and return a false negative
// Get rid of the #anchor
$url_split = explode('#', $url);
$url = $url_split[0];
// Get rid of URI ?query=string
$url_split = explode('?', $url);
$url = $url_split[0];
// Add 'www.' if it is absent and should be there
if ( false !== strpos(get_settings('home'), '://www.') && false === strpos($url, '://www.') )
$url = str_replace('://', '://www.', $url);
// Strip 'www.' if it is present and shouldn't be
if ( false === strpos(get_settings('home'), '://www.') )
$url = str_replace('://www.', '://', $url);
// Strip 'index.php/' if we're not using path info permalinks
if ( false === strpos($rewrite, 'index.php/') )
$url = str_replace('index.php/', '', $url);
$req_uri = $url; // Chop off http://domain.com
if ( false !== strpos($url, get_settings('home')) ) {
if ( false !== strpos($req_uri, get_settings('home')) ) { $url = str_replace(get_settings('home'), '', $url);
$req_uri = str_replace(get_settings('home'), '', $req_uri);
} else { } else {
// Chop off /path/to/blog
$home_path = parse_url(get_settings('home')); $home_path = parse_url(get_settings('home'));
$home_path = $home_path['path']; $home_path = $home_path['path'];
$req_uri = str_replace($home_path, '', $req_uri); $url = str_replace($home_path, '', $url);
} }
$req_uri = trim($req_uri, '/'); // Trim leading and lagging slashes
$request = $req_uri; $url = trim($url, '/');
$request = $url;
// Done with cleanup
// Look for matches. // Look for matches.
$request_match = $request; $request_match = $request;
foreach ($rewrite as $match => $query) { foreach ($rewrite as $match => $query) {
// If the requesting file is the anchor of the match, prepend it // If the requesting file is the anchor of the match, prepend it
// to the path info. // to the path info.
if ((! empty($req_uri)) && (strpos($match, $req_uri) === 0)) { if ((! empty($url)) && (strpos($match, $url) === 0)) {
$request_match = $req_uri . '/' . $request; $request_match = $url . '/' . $request;
} }
if (preg_match("!^$match!", $request_match, $matches)) { if (preg_match("!^$match!", $request_match, $matches)) {
@ -216,7 +247,7 @@ function url_to_postid($url) {
// Substitute the substring matches into the query. // Substitute the substring matches into the query.
eval("\$query = \"$query\";"); eval("\$query = \"$query\";");
$query = new WP_Query($query); $query = new WP_Query($query);
if ( !empty($query->post) ) if ( $query->is_post || $query->is_page )
return $query->post->ID; return $query->post->ID;
else else
return 0; return 0;