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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 |
|---|---|
| 109 | /** |
| 110 | * Filters the blog title for use as the feed title. |
| 111 | * |
| 112 | * @since 2.2.0 |
| 113 | * @since 4.4.0 The `$sep` parameter was deprecated and renamed to `$deprecated`. |
| 114 | * |
| 115 | * @param string $title The current blog title. |
| 116 | * @param string $deprecated Unused. |
| 117 | */ |
| 118 | return apply_filters( 'get_wp_title_rss', wp_get_document_title(), $deprecated ); |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Displays the blog title for display of the feed title. |
| 123 | * |
| 124 | * @since 2.2.0 |
| 125 | * @since 4.4.0 The optional `$sep` parameter was deprecated and renamed to `$deprecated`. |
| 126 | * |
| 127 | * @param string $deprecated Unused. |