original_string: public function getConnection()
      {
          if ($chosenConn = $this->connections->pop()) {
              $this->connections->push($chosenConn);
  
              return $chosenConn;
          }
      }
code: public function getConnection()
      {
          if ($chosenConn = $this->connections->pop()) {
              $this->connections->push($chosenConn);
  
              return $chosenConn;
          }
      }
code_tokens: public function getConnection ( ) { if ( $ chosenConn = $ this -> connections -> pop ( ) ) { $ this -> connections -> push ( $ chosenConn ) ; return $ chosenConn ; } }
docstring: Gets a connection from the pool. It will cycle through the existent
  connections.
  
  @return Connection
docstring_tokens: Gets a connection from the pool . It will cycle through the existent connections .