PHP TWITTER bot to follow/unfollow using api version 1.1 and cursors

Question

This code should only unfollow users who are not following back, but it unfollows SOME followers, cannot figure out why.

$oTwitter = new TwitterOAuth (...)

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Answer 1

This works, I think maybe it can help novices like me. Andy Jones answer really helped. Used great library for many other things as well here.

  require_once 'twitteroauth.php';

 $oTwitter = new TwitterOAuth 
(   'YOUR_TWITTER_APP_CONSUMER_KEY',
'YOUR_TWITTER_APP_CONSUMER_SECRET',
'YOUR_TWITTER_APP_OAUTH_TOKEN',
'YOUR_TWITTER_APP_OAUTH_SECRET');
 

//FULL FOLLOWERS ARRAY WITH CURSOR ( FOLLOWERS > 5000)

$e = 1;
$cursor = -1;
$full_followers = array();
do {

$follows = $oTwitter->get("followers/ids.json?screen_name=yourusername&cursor=".$cursor);

$foll_array = (array)$follows;

  foreach ($foll_array['ids'] as $key => $val) {

        $full_followers[$e] = $val;
        $e++; 
  }
       $cursor = $follows->next_cursor;

  } while ($cursor > 0);
echo "Number of following:" .$e. "

";

//FULL FRIEND ARRAY WITH CURSOR (FOLLOWING > 5000)

$e = 1;
$cursor = -1;
$full_friends = array();
do {

  $follow = $oTwitter->get("friends/ids.json?screen_name=yourusername&cursor=".$cursor);
  $foll_array = (array)$follow;

  foreach ($foll_array['ids'] as $key => $val) {

        $full_friends[$e] = $val;
        $e++;
  }
      $cursor = $follow->next_cursor;

} while ($cursor > 0);

//IF I AM FOLLOWING USER AND HE IS NOT FOLLOWING ME BACK, I UNFOLLOW HIM

    $index = 1;
    $unfollow_total=0;
    foreach( $full_friends as $iFollow )
    {
    $isFollowing = in_array( $iFollow, $full_followers );
     
    echo "$iFollow: ".( $isFollowing ? 'OK' : '!!!' )."
";
    $index++;
     if( !$isFollowing )
        {
        $parameters = array( 'user_id' => $iFollow );
        $status = $oTwitter->post('friendships/destroy', $parameters);
        $unfollow_total++;
        } if ($unfollow_total === 5) break;
    }

//IF USER IS FOLLOWING ME AND I AM NOT, I FOLLOW

$index = 1;
$follow_total = 0;

foreach( $full_followers as $heFollows )
{
$amFollowing = in_array( $heFollows, $full_friends );
 
echo "$heFollows: ".( $amFollowing ? 'OK' : '!!!' )."
";
 $index++;
 if( !$amFollowing )
    {
    $parameters = array( 'user_id' => $heFollows );
    $status = $oTwitter->post('friendships/create', $parameters);
    $follow_total++;
    } if ($follow_total === 5) break;
}

echo 'Unfollowed:'.$unfollow_total.'
';
echo 'Followed:'.$follow_total.'
';