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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 |
|---|---|
| 157 | $title = get_the_title(); |
| 158 | |
| 159 | /** |
| 160 | * Filters the post title for use in a feed. |
| 161 | * |
| 162 | * @since 1.2.0 |
| 163 | * |
| 164 | * @param string $title The current post title. |
| 165 | */ |
| 166 | return apply_filters( 'the_title_rss', $title ); |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * Display the post title in the feed. |
| 171 | * |
| 172 | * @since 0.71 |
| 173 | */ |
| 174 | function the_title_rss() { |
| 175 | echo get_the_title_rss(); |