Source View: post_thumbnail_html

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: apply_filters( "hook_name", "what_to_filter" ).

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
174       * @since 2.9.0
175       *
176       * @param string       $html              The post thumbnail HTML.
177       * @param int          $post_id           The post ID.
178       * @param string       $post_thumbnail_id The post thumbnail ID.
179       * @param string|array $size              The post thumbnail size. Image size or array of width and height
180       *                                        values (in that order). Default 'post-thumbnail'.
181       * @param string       $attr              Query string of attributes.
182       */
183      return apply_filters( 'post_thumbnail_html', $html, $post->ID, $post_thumbnail_id, $size, $attr );
184 }
185
186 /**
187  * Return the post thumbnail URL.
188  *
189  * @since 4.4.0
190  *
191  * @param int|WP_Post  $post Optional. Post ID or WP_Post object.  Default is global `$post`.
192  * @param string|array $size Optional. Registered image size to retrieve the source for or a flat