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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 |
|---|---|
| 82 | |
| 83 | /** |
| 84 | * Filters the page title when creating an HTML drop-down list of pages. |
| 85 | * |
| 86 | * @since 3.1.0 |
| 87 | * |
| 88 | * @param string $title Page title. |
| 89 | * @param WP_Post $page Page data object. |
| 90 | */ |
| 91 | $title = apply_filters( 'list_pages', $title, $page ); |
| 92 | |
| 93 | $output .= $pad . esc_html( $title ); |
| 94 | $output .= "</option>\n"; |
| 95 | } |
| 96 | } |
| 97 | |