Get the object ID by URL

4 comments

1. Try this function:

   url_to_postid( $url );
   

   The WordPress codex is your friend. A quick Google search could have provided the answer.

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2. The other answers are valid, but just to add another (usually unknown, but very usefull ) method that is supplied by a function called :get_page_by_path();

   $page =get_page_by_path('parent-page/sub-page');
   

   It is worthy to note that the path parameter can even take a SLUG as parameter.
   Example :

   $page = get_page_by_path('your-slug-of-page-to-exclude');
   wp_list_pages('exclude='.$page->ID.'&title_li=');
   

   then you could use $page->ID

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3. Use get_queried_object_id() a mapper for WP_Query::get_queried_object_id().

   Unlike url_to_postid() you don’t have to know the URL and it works on taxonomies and custom post types too (if I remember this correct).

   For a usage example see my answer to Get current term’s ID.

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4. I had the same problem, only with custom post types. Unfortunately url_to_postid( $url ); is not working with custom types, so I ended up using this function bwp_url_to_postid($url).
   This function extend url_to_postid( $url ); to work with custom post types.

   If you have the permalink of the URL, then:

   <?php $postLink = get_permalink($post_object->ID); ?>
   <?php $postId = bwp_url_to_postid($link); ?>
   <?php echo $postId ?>
   

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