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   1 # void pq\Connection::__construct([string $dsn = ""[, int $flags = 0]])
   2
   3 Create a new PostgreSQL connection.
   4 See also [General Usage](pq/Connection/: General Usage).
   5
   6 ## Params:
   7 * Optional string $dsn = ""
   8   A ***connection string*** as described [in the PostgreSQL documentation](http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING).
   9 * Optional int $flags = 0
  10   See [connection flag constants](pq/Connection#Connection.Flags:).
  11
  12 ## Throws:
  13
  14 * pq\Exception\InvalidArgumentException
  15 * pq\Exception\BadMethodCallException
  16 * pq\Exception\RuntimeException
  17
  18 ## Example:
  19
  20         <?php
  21
  22         $connection = new pq\Connection("dbname=test user=test password=test",
  23                 pq\Connection::ASYNC | pq\Connection::PERSISTENT);
  24
  25         ?>
  26
  27