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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 |
---|---|
26 | $admin_title = sprintf( __( '%1$s ‹ %2$s — WordPress' ), $title, $admin_title ); |
27 |
|
28 | $admin_title = apply_filters( 'admin_title', $admin_title, $title ); |
29 |
|
30 | wp_user_settings(); |
31 | wp_menu_unfold(); |
32 |
|
33 | ?> |
34 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
35 | <html xmlns="http://www.w3.org/1999/xhtml" <?php do_action('admin_xml_ns'); ?> <?php language_attributes(); ?>> |
36 | <head> |
37 | <meta http-equiv="Content-Type" content="<?php bloginfo('html_type'); ?>; charset=<?php echo get_option('blog_charset'); ?>" /> |
38 | <title><?php echo $admin_title; ?></title> |
39 | <?php |
40 |
|
41 | wp_admin_css( 'global' ); |
42 | wp_admin_css(); |
43 | wp_admin_css( 'colors' ); |
44 | wp_admin_css( 'ie' ); |