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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 |
|---|---|
| 1290 | if ( empty( $details ) || is_wp_error( add_existing_user_to_blog( $details ) ) ) |
| 1291 | wp_die( sprintf(__('An error occurred adding you to this site. Back to the <a href="%s">homepage</a>.'), site_url() ) ); |
| 1292 | |
| 1293 | wp_die( sprintf(__('You have been added to this site. Please visit the <a href="%s">homepage</a> or <a href="%s">login</a> using your username and password.'), site_url(), admin_url() ), __('Success') ); |
| 1294 | } |
| 1295 | |
| 1296 | function add_existing_user_to_blog( $details = false ) { |
| 1297 | if ( is_array( $details ) ) { |
| 1298 | $result = add_user_to_blog( '', $details[ 'user_id' ], $details[ 'role' ] ); |
| 1299 | do_action( 'added_existing_user', $details[ 'user_id' ], $result ); |
| 1300 | } |
| 1301 | return $result; |
| 1302 | } |
| 1303 | |
| 1304 | function add_new_user_to_blog( $user_id, $email, $meta ) { |
| 1305 | global $current_site; |
| 1306 | if ( $meta[ 'add_to_blog' ] ) { |
| 1307 | $blog_id = $meta[ 'add_to_blog' ]; |
| 1308 | $role = $meta[ 'new_role' ]; |