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Source View: user_registration_email

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
208      if ( FALSE == get_option('users_can_register') ) {
209           wp_redirect('wp-login.php?registration=disabled');
210           exit();
211      }
212
213      if ( $_POST ) {
214           require_once( ABSPATH . WPINC . '/registration.php');
215
216           $user_login = sanitize_user( $_POST['user_login'] );
217           $user_email = apply_filters( 'user_registration_email', $_POST['user_email'] );
218
219           // Check the username
220           if ( $user_login == '' )
221                $errors['user_login'] = __('<strong>ERROR</strong>: Please enter a username.');
222           elseif ( !validate_username( $user_login ) ) {
223                $errors['user_login'] = __('<strong>ERROR</strong>: This username is invalid.  Please enter a valid username.');
224                $user_login = '';
225           } elseif ( username_exists( $user_login ) )
226                $errors['user_login'] = __('<strong>ERROR</strong>: This username is already registered, please choose another one.');