Connection pooling vs persist connection mysqli

I've read that mysqli introduced connection pooling that was not available in mysql.http://php.net/manual/en/mysqli.quickstart.connections.php I've read this question <http://stackoverflow.com/questions/9736188/mysql-persistent-connection-vs-connection-pooling> that explains the difference between connection pooling and persist connections. In the mysqli documentation for Persistent connection <http://php.net/manual/en/mysqli.quickstart.connections.php> they have written that: If a unused persistent connection for a given combination of host, username, password, socket, port and default database can not be found in the connection pool, then mysqli opens a new connection. So, does mysqli use connection pooling for persistent connections? If yes, then what is difference between connection pooling and persistent connections in mysqli? If no, then how does mysqli perform a lookup for a connection object for a persistent connection? -- *With Regards:Kapatel Dhruv vmobile:+919909214243* <https://www.facebook.com/kapateldhruv> <https://twitter.com/kapatel_dhruv> <http://in.linkedin.com/pub/dhruv-kapatel/28/938/734> <https://plus.google.com/u/0/107663824071419377609/posts> <http://stackoverflow.com/users/2016271/dhruv>