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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )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.
| Line | Code |
|---|---|
| 40 | * @package WordPress |
| 41 | * @subpackage Feed |
| 42 | * @since 0.71 |
| 43 | * @uses apply_filters() Calls 'bloginfo_rss' hook with two parameters. |
| 44 | * @see get_bloginfo() For the list of possible values to display. |
| 45 | * |
| 46 | * @param string $show See get_bloginfo() for possible values. |
| 47 | */ |
| 48 | function bloginfo_rss($show = '') { |
| 49 | echo apply_filters('bloginfo_rss', get_bloginfo_rss($show), $show); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Retrieve the default feed. |
| 54 | * |
| 55 | * The default feed is 'rss2', unless a plugin changes it through the |
| 56 | * 'default_feed' filter. |
| 57 | * |
| 58 | * @package WordPress |