gistfile1.php

<?php
/**
   * Reorder Social Accounts
   */
  private function up1024_reorderSocialAccountOptions($accounts) {
    $socialAccounts = civicrm_api3('OptionValue', 'get', [
      'option_group_id' => 'website_type',
      'name' => ['IN' => $accounts],
    ]);

    $socialAccounts = $socialAccounts['values'];
    foreach ($socialAccounts as $optionValueId => $optionValue) {
      switch ($optionValue['name']) {
        case 'LinkedIn':
          $newWeight = 1;
          $isDefault = 1;
          break;

        case 'Twitter':
          $newWeight = 2;
          $isDefault = 0;
          break;

        case 'Facebook':
          $newWeight = 3;
          $isDefault = 0;
          break;
      }
        civicrm_api3('OptionValue', 'create', [
          'id' => $optionValueId,
          'weight' => $newWeight,
          'is_default' => $isDefault,
        ]);
    }
  }