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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 |
|---|---|
| 1011 | if ( $lang = get_bloginfo('language') ) { |
| 1012 | if ( get_option('html_type') == 'text/html' || $doctype == 'xhtml' ) |
| 1013 | $attributes[] = "lang=\"$lang\""; |
| 1014 | |
| 1015 | if ( get_option('html_type') != 'text/html' || $doctype == 'xhtml' ) |
| 1016 | $attributes[] = "xml:lang=\"$lang\""; |
| 1017 | } |
| 1018 | |
| 1019 | $output = implode(' ', $attributes); |
| 1020 | $output = apply_filters('language_attributes', $output); |
| 1021 | echo $output; |
| 1022 | } |
| 1023 | |
| 1024 | function paginate_links( $args = '' ) { |
| 1025 | $defaults = array( |
| 1026 | 'base' => '%_%', // http://example.com/all_posts.php%_% : %_% is replaced by format (below) |
| 1027 | 'format' => '?page=%#%', // ?page=%#% : %#% is replaced by the page number |
| 1028 | 'total' => 1, |
| 1029 | 'current' => 0, |