BuddyPress.org

<?php
/**
 * Plugin Name: BuddyPress Reaction Sort 
 * Description: Sorts BuddyPress activities by reactions.
 * Version: 1.0
 * Author: Your Name
 */
require_once( '/www/wwwroot/fsyz.club/wp-content/plugins/buddypress/bp-loader.php' );

function bp_reaction_sort() {

  global $wpdb;

  $activities = bp_activity_get( array(
    'per_page' => 20    
  ) );

  // Debug
  echo "Query returned " . count($activities['activities']) . " activities <br>";

  $activity_reactions = array();

  foreach ( $activities['activities'] as $activity ) {

    $id = $activity->id;

    $count = $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->prefix}iq_reaction_activity WHERE activity_id = $id" );

    $activity_reactions[(int)$id] = (int)$count;

  }

  arsort( $activity_reactions );
  var_dump( $activity_reactions  );
  return $activity_reactions;

}
add_filter( 'bp_has_activities', 'bp_replace_activities', 10, 2 );
function bp_replace_activities( $has_activities, $activity_reactions ) {

  global $activity_reactions;
  $activity_reactions = bp_reaction_sort();
  $sorted_activities =  array_keys( $activity_reactions );
  
  $has_activities = false;

  buddypress()->activities->activities = $sorted_activities;
  var_dump($sorted_activities );
  $has_activities = true;
  return BP_Activity_Activity::get( array(
    'in' => $sorted_activities
  )); 

}

add_action( 'bp_before_directory_activity_list', 'bp_reaction_sort' );

it output right order in $sorted_activities but the stream is in wrong order,with a warning:Creating default object from empty value anybody can help me ?