Charitable: Force PayPal Legacy gateway

  /**

   * Charitable — Force PayPal Legacy gateway on this site.

   *

   * Overrides Charitable Pro 1.8.15+ PayPal tier detection at read-time

   * so the legacy `paypal` gateway stays visible (and PayPal Commerce stays

   * hidden) regardless of what was auto-detected on plugin upgrade.

   *

   * No DB write — uses WordPress's `pre_option_*` short-circuit filter, so

   * disabling this snippet immediately reverts the site to whatever the

   * stored `charitable_paypal_user_tier` option says.

   *

   * Add via WPCode (PHP Snippet → Auto Insert → Run Everywhere).

   * To switch the site back to PayPal Commerce, simply deactivate this snippet.

   *

   * Tested with: Charitable Pro 1.8.15.

   */

  // Standard WordPress safety guard — prevents direct file access.

  if ( ! defined( 'ABSPATH' ) ) {

        return;

  }

  add_filter( 'pre_option_charitable_paypal_user_tier', function () {

        return 'legacy';

  } );