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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 |
|---|---|
| 144 | function get_the_title_rss() { |
| 145 | $title = get_the_title(); |
| 146 | /** |
| 147 | * Filter the post title for use in a feed. |
| 148 | * |
| 149 | * @since 1.2.0 |
| 150 | * |
| 151 | * @param string $title The current post title. |
| 152 | */ |
| 153 | $title = apply_filters( 'the_title_rss', $title ); |
| 154 | return $title; |
| 155 | } |
| 156 | |
| 157 | /** |
| 158 | * Display the post title in the feed. |
| 159 | * |
| 160 | * @since 0.71 |
| 161 | * @uses get_the_title_rss() Used to retrieve current post title. |
| 162 | */ |