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Source View: pre_update_option_{$option_name}

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Line Code
496      global $wpdb;
497
498      wp_protect_special_option( $option_name );
499
500      $safe_option_name = esc_sql( $option_name );
501      $newvalue = sanitize_option( $option_name, $newvalue );
502
503      $oldvalue = get_option( $safe_option_name );
504
505      $newvalue = apply_filters( 'pre_update_option_' . $option_name, $newvalue, $oldvalue );
506
507      // If the new and old values are the same, no need to update.
508      if ( $newvalue === $oldvalue )
509           return false;
510
511      if ( false === $oldvalue ) {
512           add_option( $option_name, $newvalue );
513           return true;
514      }