What is the difference between mysql_connect() and mysql_pconnect()?
mysql_pconnect ? Open a persistent connection to a MySQL server
mysql_pconnect() acts very much like mysql_connect() with two major differences.
First, when connecting, the function would first try to find a (persistent) link that's already open with the same host, username and password. If one is found, an identifier for it will be returned instead of opening a newconnection.
Second, the connection to the SQL server will not be closed when the execution of the script ends. Instead, the link will remain open for future use (mysql_close() will not close links established by mysql_pconnect()).
This type of link is therefore called 'persistent'.
mysql_connect ? Open a connection to a MySQL Server
Opens or reuses a connection to a MySQL server.
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