pg_pconnect Open a persistent PostgreSQL connection resourcepg_pconnect stringconnection_string pg_pconnect opens a connection to a PostgreSQL database. It returns a connection resource that is needed by other PostgreSQL functions. For a description of the connection_string parameter, see pg_connect. To enable persistent connection, the pgsql.allow_persistent &php.ini; directive must be set to "On" (which is the default). The maximum number of persistent connection can be defined with the pgsql.max_persistent &php.ini; directive (defaults to -1 for no limit). The total number of connections can be set with the pgsql.max_links &php.ini; directive. pg_close will not close persistent links generated by pg_pconnect. See also pg_connect, and the section Persistent Database Connections for more information.