phpPostgreSQLdB: Abstraction layer for PostgreSQL DB

Class that provides an abstraction layer above the PHP PostgreSQL API. This centralizes all the database connection info such as host, port, etc. Same class an be used to connect to multiple databases on different servers and on different ports.

In addition to "normal" stuff that you'd expect from a db abstraction layer, it also supports transactions among other things. Comprehensive error checking/management.

Revision History:
*** see class header for revision history ***

Sample usage:

//// Example #1 ////////////////

include("include/dblib.php");
$db = new phpDB();
$db->connect("foobar");
$db->beginTrans();

if (!$db->exec("INSERT INTO weather VALUES ('Vancouver', 1, 5, 0.25)")) {
echo $db->errorMsg();
$db->rollbackTrans();
}

$db->commitTrans();
if (!$db->exec("SELECT * FROM weather"))
echo $db->errorMsg();

//// Example #2 ////////////////

include("include/dbutil.php");
$db = new phpDB();
$db->connect("foobar");
$db->exec("SELECT * from TREVIN");

while ($db->nextRow()) {

// can access like objects!
$rs1 = $db->fobject();
echo "$rs->description : $rs->color : $rs->price <br>";

// Can access like an array!
$rs2 = $db->farray();
echo "$rs2[0] : $rs2[1] : $rs[2] <br>";
}