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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 |
|---|---|
| 975 | } |
| 976 | |
| 977 | /** |
| 978 | * Filter the HTML output of a list of pages as a drop down. |
| 979 | * |
| 980 | * @since 2.1.0 |
| 981 | * |
| 982 | * @param string $output HTML output for drop down list of pages. |
| 983 | */ |
| 984 | $html = apply_filters( 'wp_dropdown_pages', $output ); |
| 985 | |
| 986 | if ( $r['echo'] ) { |
| 987 | echo $html; |
| 988 | } |
| 989 | return $html; |
| 990 | } |
| 991 | |
| 992 | /** |
| 993 | * Retrieve or display list of pages in list (li) format. |