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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 |
|---|---|
| 11 | |
| 12 | require_once( dirname(dirname(__FILE__)) . '/admin.php'); |
| 13 | |
| 14 | if ( ! is_multisite() ) { |
| 15 | wp_redirect( admin_url() ); |
| 16 | exit; |
| 17 | } |
| 18 | |
| 19 | $redirect_user_admin_request = ( ( $current_blog->domain != $current_site->domain ) || ( $current_blog->path != $current_site->path ) ); |
| 20 | $redirect_user_admin_request = apply_filters( 'redirect_user_admin_request', $redirect_user_admin_request ); |
| 21 | if ( $redirect_user_admin_request ) { |
| 22 | wp_redirect( user_admin_url() ); |
| 23 | exit; |
| 24 | } |
| 25 | unset( $redirect_user_admin_request ); |
| 26 | |
| 27 | ?> |
| 28 | |