mysqli, PDO and persistant connections?

[random1]

Hey All

 

I currently use the 'mysqli' class in PHP to work with mySQL:

 

$this->m_Connection = new mysqli($dbhost, $dbusername, $dbpassword, $dbschema);

 

Is PDO stable and better than mysqli?

 

Also are persistant connections to a mysql database important? How do I check if my code is supporting persistant connections?

 

Help is appreciated.