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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 |
|---|---|
| 1176 | * Filter the HTML output of a page-based menu. |
| 1177 | * |
| 1178 | * @since 2.7.0 |
| 1179 | * |
| 1180 | * @see wp_page_menu() |
| 1181 | * |
| 1182 | * @param string $menu The HTML output. |
| 1183 | * @param array $args An array of arguments. |
| 1184 | */ |
| 1185 | $menu = apply_filters( 'wp_page_menu', $menu, $args ); |
| 1186 | if ( $args['echo'] ) |
| 1187 | echo $menu; |
| 1188 | else |
| 1189 | return $menu; |
| 1190 | } |
| 1191 | |
| 1192 | // |
| 1193 | // Page helpers |
| 1194 | // |