Source View: wp_get_attachment_thumb_url

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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
5165
5166      /**
5167       * Filters the attachment thumbnail URL.
5168       *
5169       * @since 2.1.0
5170       *
5171       * @param string $url     URL for the attachment thumbnail.
5172       * @param int    $post_id Attachment ID.
5173       */
5174      return apply_filters( 'wp_get_attachment_thumb_url', $url, $post->ID );
5175 }
5176
5177 /**
5178  * Verifies an attachment is of a given type.
5179  *
5180  * @since 4.2.0
5181  *
5182  * @param string      $type Attachment type. Accepts 'image', 'audio', or 'video'.
5183  * @param int|WP_Post $post Optional. Attachment ID or object. Default is global $post.