I use codebird-php,
code:
$ConsumerKey="____KEY____";//
$ConsumerKeySecret="___KEY_SECRET____";
\Codebird\Codebird::setConsumerKey($ConsumerKey, $ConsumerKeySecret);
$cb = \Codebird\Codebird::getInstance();
$AccessToken="_______ACCESS_TOKEN__";
$AccessTokenSecret="______ACCESS_TOKEN_SECRET______";
$cb->setToken($AccessToken, $AccessTokenSecret);
$key='test';
$params_twt = array('q'=>$key);
//--
$reply = $cb->search_tweets($params_twt);