I have this script that authenticates with Twitter API 1.1 and retrieves the last 6 tweets from my timeline.
Code: [Select]
Should I add a cache mechanism? That maybe stores in a file the JSON fetched and updates it only if it's older than X minutes. Without caching does this impact much on server load?
<?php
function buildBaseString($baseURI, $method, $params)
{
$r = array();
ksort($params);
foreach($params as $key=>$value){
$r[] = "$key=" . rawurlencode($value);
}
return $method."&" . rawurlencode($baseURI) . '&' . rawurlencode(implode('&', $r)); //return complete base string
}
function buildAuthorizationHeader($oauth)
{
$r = 'Authorization: OAuth ';
$values = array();
foreach($oauth as $key=>$value)
$values[] = "$key=\"" . rawurlencode($value) . "\"";
$r .= implode(', ', $values);
return $r;
}
$url = "https://api.twitter.com/1.1/statuses/user_timeline.json";
$oauth_access_token = "INSERIRE TOKEN";
$oauth_access_token_secret = "INSERIRE TOKEN";
$consumer_key = "INSERIRE KEY";
$consumer_secret = "INSERIRE KEY";
$oauth = array( 'oauth_consumer_key' => $consumer_key,
'oauth_nonce' => time(),
'oauth_signature_method' => 'HMAC-SHA1',
'oauth_token' => $oauth_access_token,
'oauth_timestamp' => time(),
'count' => 6,
'oauth_version' => '1.0');
$base_info = buildBaseString($url, 'GET', $oauth);
$composite_key = rawurlencode($consumer_secret) . '&' . rawurlencode($oauth_access_token_secret);
$oauth_signature = base64_encode(hash_hmac('sha1', $base_info, $composite_key, true));
$oauth['oauth_signature'] = $oauth_signature;
$header = array(buildAuthorizationHeader($oauth), 'Expect:');
$options = array( CURLOPT_HTTPHEADER => $header,
CURLOPT_HEADER => false,
CURLOPT_URL => $url . '?count=6',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_SSL_VERIFYPEER => false);
$feed = curl_init();
curl_setopt_array($feed, $options);
$json = curl_exec($feed);
curl_close($feed);
$twitter_data = json_decode($json);
echo "<ul style='color:#6E6E6E'>";
foreach ($twitter_data as $tweet)
{
if (!empty($tweet)) {
$text = $tweet->text;
$text_in_tooltip = str_replace('"', '', $text); // replace " to avoid conflicts with title="" opening tags
$id = $tweet->id;
$time = strftime('%d %B', strtotime($tweet->created_at));
$username = $tweet->user->name;
}
echo '<li><span title="'; echo $text_in_tooltip; echo '">'; echo $text . "</span><br>
<a href=\"http://twitter.com/"; echo $username ; echo '/status/'; echo $id ; echo '"><small>'; echo $time; echo ' </small></a> -
<a href="http://twitter.com/intent/tweet?in_reply_to='; echo $id; echo '"><small>rispondi</small></a> -
<a href="http://twitter.com/intent/retweet?tweet_id='; echo $id; echo '"><small>retweet</small></a> -
<a href="http://twitter.com/intent/favorite?tweet_id='; echo $id; echo '"><small>preferito</small></a></li>';
}
echo '</ul>';
?>
Should I add a cache mechanism? That maybe stores in a file the JSON fetched and updates it only if it's older than X minutes. Without caching does this impact much on server load?
