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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 |
|---|---|
| 1328 | |
| 1329 | if ( $u->spam == 1 ) |
| 1330 | return true; |
| 1331 | |
| 1332 | return false; |
| 1333 | } |
| 1334 | |
| 1335 | function update_blog_public( $old_value, $value ) { |
| 1336 | global $wpdb; |
| 1337 | do_action('update_blog_public'); |
| 1338 | update_blog_status( $wpdb->blogid, 'public', (int) $value ); |
| 1339 | } |
| 1340 | add_action('update_option_blog_public', 'update_blog_public', 10, 2); |
| 1341 | |
| 1342 | /* Redirect all hits to "dashboard" blog to wp-admin/ Dashboard. */ |
| 1343 | function redirect_mu_dashboard() { |
| 1344 | global $current_site, $current_blog; |
| 1345 | |
| 1346 | $dashboard_blog = get_dashboard_blog(); |