--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/punbb/include/dblayer/mysql.php	Wed Jul 11 21:01:48 2007 -0400
@@ -0,0 +1,190 @@
+<?php
+/***********************************************************************
+
+  Copyright (C) 2002-2005  Rickard Andersson (rickard@punbb.org)
+
+  This file is part of PunBB.
+
+  PunBB is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published
+  by the Free Software Foundation; either version 2 of the License,
+  or (at your option) any later version.
+
+  PunBB is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+  MA  02111-1307  USA
+
+************************************************************************/
+
+
+// Make sure we have built in support for MySQL
+if (!function_exists('mysql_connect'))
+	exit('This PHP environment doesn\'t have MySQL support built in. MySQL support is required if you want to use a MySQL database to run this forum. Consult the PHP documentation for further assistance.');
+
+
+class DBLayer
+{
+	var $prefix;
+	var $link_id;
+	var $query_result;
+
+	var $saved_queries = array();
+	var $num_queries = 0;
+
+
+	function DBLayer($db_host, $db_username, $db_password, $db_name, $db_prefix, $p_connect)
+	{
+		$this->prefix = $db_prefix;
+
+		if ($p_connect)
+			$this->link_id = @mysql_pconnect($db_host, $db_username, $db_password);
+		else
+			$this->link_id = @mysql_connect($db_host, $db_username, $db_password);
+
+		if ($this->link_id)
+		{
+			if (@mysql_select_db($db_name, $this->link_id))
+				return $this->link_id;
+			else
+				error('Unable to select database. MySQL reported: '.mysql_error(), __FILE__, __LINE__);
+		}
+		else
+			error('Unable to connect to MySQL server. MySQL reported: '.mysql_error(), __FILE__, __LINE__);
+	}
+
+
+	function start_transaction()
+	{
+		return;
+	}
+
+
+	function end_transaction()
+	{
+		return;
+	}
+
+
+	function query($sql, $unbuffered = false)
+	{
+		if (defined('PUN_SHOW_QUERIES'))
+			$q_start = get_microtime();
+
+		if ($unbuffered)
+			$this->query_result = @mysql_unbuffered_query($sql, $this->link_id);
+		else
+			$this->query_result = @mysql_query($sql, $this->link_id);
+
+		if ($this->query_result)
+		{
+			if (defined('PUN_SHOW_QUERIES'))
+				$this->saved_queries[] = array($sql, sprintf('%.5f', get_microtime() - $q_start));
+
+			++$this->num_queries;
+
+			return $this->query_result;
+		}
+		else
+		{
+			if (defined('PUN_SHOW_QUERIES'))
+				$this->saved_queries[] = array($sql, 0);
+
+			return false;
+		}
+	}
+
+
+	function result($query_id = 0, $row = 0)
+	{
+		return ($query_id) ? @mysql_result($query_id, $row) : false;
+	}
+
+
+	function fetch_assoc($query_id = 0)
+	{
+		return ($query_id) ? @mysql_fetch_assoc($query_id) : false;
+	}
+
+
+	function fetch_row($query_id = 0)
+	{
+		return ($query_id) ? @mysql_fetch_row($query_id) : false;
+	}
+
+
+	function num_rows($query_id = 0)
+	{
+		return ($query_id) ? @mysql_num_rows($query_id) : false;
+	}
+
+
+	function affected_rows()
+	{
+		return ($this->link_id) ? @mysql_affected_rows($this->link_id) : false;
+	}
+
+
+	function insert_id()
+	{
+		return ($this->link_id) ? @mysql_insert_id($this->link_id) : false;
+	}
+
+
+	function get_num_queries()
+	{
+		return $this->num_queries;
+	}
+
+
+	function get_saved_queries()
+	{
+		return $this->saved_queries;
+	}
+
+
+	function free_result($query_id = false)
+	{
+		return ($query_id) ? @mysql_free_result($query_id) : false;
+	}
+
+
+	function escape($str)
+	{
+		if (is_array($str))
+			return '';
+		else if (function_exists('mysql_real_escape_string'))
+			return mysql_real_escape_string($str, $this->link_id);
+		else
+			return mysql_escape_string($str);
+	}
+
+
+	function error()
+	{
+		$result['error_sql'] = @current(@end($this->saved_queries));
+		$result['error_no'] = @mysql_errno($this->link_id);
+		$result['error_msg'] = @mysql_error($this->link_id);
+
+		return $result;
+	}
+
+
+	function close()
+	{
+		if ($this->link_id)
+		{
+			if ($this->query_result)
+				@mysql_free_result($this->query_result);
+
+			return @mysql_close($this->link_id);
+		}
+		else
+			return false;
+	}
+}