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Source View: pre_user_login

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Line Code
1464      /**
1465       * Filters a username after it has been sanitized.
1466       *
1467       * This filter is called before the user is created or updated.
1468       *
1469       * @since 2.0.3
1470       *
1471       * @param string $sanitized_user_login Username after it has been sanitized.
1472       */
1473      $pre_user_login = apply_filters( 'pre_user_login', $sanitized_user_login );
1474
1475      //Remove any non-printable chars from the login string to see if we have ended up with an empty username
1476      $user_login = trim( $pre_user_login );
1477
1478      // user_login must be between 0 and 60 characters.
1479      if ( empty( $user_login ) ) {
1480           return new WP_Error('empty_user_login', __('Cannot create a user with an empty login name.') );
1481      } elseif ( mb_strlen( $user_login ) > 60 ) {
1482           return new WP_Error( 'user_login_too_long', __( 'Username may not be longer than 60 characters.' ) );