twitter_bot.php

<?php
date_default_timezone_set('Asia/Tokyo');

// twitter setting
require_once('twitteroauth/twitteroauth/twitteroauth.php');
$consumer_key = "YOUR CONSUMER KEY";
$consumer_secret = "YOUR CONSUMER SECRET";
$access_token = "ACCESS TOKEN";
$access_token_secret = "ACCESS TOKEN SECRET";

// blog setting
require_once('simple_html_dom.php');
$blog_id = "YOUR LIVEDOOR BLOG ID";
$blog_uri = "http://blog.livedoor.jp/$blog_id/archives/";

// get all feed
$target_year = 2014;
$all_posts = array();
for ($month = 1; $month <= 12; $month++) {
  for ($p = 1; $p < 10; $p++) {
    $get_uri = $blog_uri . $target_year . "-" . sprintf("%02d", $month) . ".html" . "?p=$p";
    $html = @file_get_html($get_uri);
    if ($html && is_object($html) && isset($html->nodes)) {
      foreach ($html->find(".article-title") as $title) {
        array_push($all_posts, array(
          "title" => $title->plaintext,
          "link_uri" => $title->find("a", 0)->href,
        ));
      }
    }
  }
}
// set baknumber
$post = $all_posts[array_rand($all_posts, 1)];
$message = "post back number:" . $post["title"] . " " . $post["link_uri"];

$conn = new TwitterOAuth($consumer_key,$consumer_secret,$access_token,$access_token_secret);

//random post
$conn->OAuthRequest(
  "https://api.twitter.com/1.1/statuses/update.json",
  "POST",
  array(
    "status" => $message
));

// // follow back
if ($conn) {
  $followers = $conn->get('followers/ids', array('cursor' => -1));
  $friends = $conn->get('friends/ids', array('cursor' => -1));
  if ($followers && $friends && !empty($friends->ids)) {
    foreach ($followers->ids as $i => $id) {
      if (!in_array($id, $friends->ids)) {
        $conn->post('friendships/create', array('user_id' => $id));
      }
    }
  }
}

// search follow
$search_word = urlencode('twitter bot');
$req = $conn->OAuthRequest(
  'https://api.twitter.com/1.1/search/tweets.json','GET',
  array(
    'q' => $search_word,
    'count' => '10',
    'include_entities' => 'true',
  ));
$res = json_decode($req);
$recs = $res->{'statuses'};
for( $i = 0; $i < sizeof($recs); $i++) {
  $conn->post('friendships/create', array('user_id' => $recs[$i]->user->id));
}