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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 |
---|---|
1247 | * @since 1.5.1 |
1248 | * @since 4.4.0 `$pages` added as arguments. |
1249 | * |
1250 | * @see wp_list_pages() |
1251 | * |
1252 | * @param string $output HTML output of the pages list. |
1253 | * @param array $r An array of page-listing arguments. |
1254 | * @param array $pages List of WP_Post objects returned by `get_pages()` |
1255 | */ |
1256 | $html = apply_filters( 'wp_list_pages', $output, $r, $pages ); |
1257 |
|
1258 | if ( $r['echo'] ) { |
1259 | echo $html; |
1260 | } else { |
1261 | return $html; |
1262 | } |
1263 | } |
1264 |
|
1265 | /** |