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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 |
|---|---|
| 1028 | if ( $lang = get_bloginfo('language') ) { |
| 1029 | if ( get_option('html_type') == 'text/html' || $doctype == 'xhtml' ) |
| 1030 | $attributes[] = "lang=\"$lang\""; |
| 1031 | |
| 1032 | if ( get_option('html_type') != 'text/html' || $doctype == 'xhtml' ) |
| 1033 | $attributes[] = "xml:lang=\"$lang\""; |
| 1034 | } |
| 1035 | |
| 1036 | $output = implode(' ', $attributes); |
| 1037 | $output = apply_filters('language_attributes', $output); |
| 1038 | echo $output; |
| 1039 | } |
| 1040 | |
| 1041 | function paginate_links( $args = '' ) { |
| 1042 | $defaults = array( |
| 1043 | 'base' => '%_%', // http://example.com/all_posts.php%_% : %_% is replaced by format (below) |
| 1044 | 'format' => '?page=%#%', // ?page=%#% : %#% is replaced by the page number |
| 1045 | 'total' => 1, |
| 1046 | 'current' => 0, |