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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 |
---|---|
238 | } |
239 | } |
240 |
|
241 | // Lock settings. |
242 | $user_id = wp_check_post_lock( $post->ID ); |
243 | if ( $user_id ) { |
244 | $locked = false; |
245 |
|
246 | /** This filter is documented in wp-admin/includes/post.php */ |
247 | if ( apply_filters( 'show_post_locked_dialog', true, $post, $user_id ) ) { |
248 | $locked = true; |
249 | } |
250 |
|
251 | $user_details = null; |
252 | if ( $locked ) { |
253 | $user = get_userdata( $user_id ); |
254 | $user_details = array( |
255 | 'name' => $user->display_name, |
256 | ); |