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mysql_pconnect
mysql_pconnect([hostname[:port|:/socket/path][, username[, password]]])
This function opens a persistent connection to a MySQL Server. Works
the same as mysql_connect, except that the connection
is not closed by mysql_close or at the end of the script.
If a persistent connection is already found to exist with the specified parameters,
then this is used, avoiding the creation of a new one.
