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<?php
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/***********************************************************************
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Copyright (C) 2002-2005 Rickard Andersson (rickard@punbb.org)
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This file is part of PunBB.
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PunBB is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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PunBB is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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MA 02111-1307 USA
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************************************************************************/
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// Make sure we have built in support for MySQL
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if (!function_exists('mysqli_connect'))
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exit('This PHP environment doesn\'t have Improved MySQL (mysqli) support built in. Improved MySQL support is required if you want to use a MySQL 4.1 (or later) database to run this forum. Consult the PHP documentation for further assistance.');
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class DBLayer
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{
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var $prefix;
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var $link_id;
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var $query_result;
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var $saved_queries = array();
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var $num_queries = 0;
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function DBLayer($db_host, $db_username, $db_password, $db_name, $db_prefix, $foo)
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{
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$this->prefix = $db_prefix;
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// Was a custom port supplied with $db_host?
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if (strpos($db_host, ':') !== false)
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list($db_host, $db_port) = explode(':', $db_host);
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if (isset($db_port))
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$this->link_id = @mysqli_connect($db_host, $db_username, $db_password, $db_name, $db_port);
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else
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$this->link_id = @mysqli_connect($db_host, $db_username, $db_password, $db_name);
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if (!$this->link_id)
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error('Unable to connect to MySQL and select database. MySQL reported: '.mysqli_connect_error(), __FILE__, __LINE__);
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}
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function start_transaction()
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{
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return;
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}
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function end_transaction()
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{
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return;
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}
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function query($sql, $unbuffered = false)
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{
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if (defined('PUN_SHOW_QUERIES'))
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$q_start = get_microtime();
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$this->query_result = @mysqli_query($this->link_id, $sql);
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if ($this->query_result)
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{
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if (defined('PUN_SHOW_QUERIES'))
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$this->saved_queries[] = array($sql, sprintf('%.5f', get_microtime() - $q_start));
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++$this->num_queries;
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return $this->query_result;
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}
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else
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{
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if (defined('PUN_SHOW_QUERIES'))
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$this->saved_queries[] = array($sql, 0);
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return false;
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}
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}
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function result($query_id = 0, $row = 0)
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{
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if ($query_id)
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{
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if ($row)
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@mysqli_data_seek($query_id, $row);
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$cur_row = @mysqli_fetch_row($query_id);
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return $cur_row[0];
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}
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else
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return false;
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}
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function fetch_assoc($query_id = 0)
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{
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return ($query_id) ? @mysqli_fetch_assoc($query_id) : false;
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}
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function fetch_row($query_id = 0)
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{
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return ($query_id) ? @mysqli_fetch_row($query_id) : false;
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}
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function num_rows($query_id = 0)
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{
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return ($query_id) ? @mysqli_num_rows($query_id) : false;
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}
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function affected_rows()
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{
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return ($this->link_id) ? @mysqli_affected_rows($this->link_id) : false;
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}
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function insert_id()
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{
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return ($this->link_id) ? @mysqli_insert_id($this->link_id) : false;
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}
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function get_num_queries()
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{
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return $this->num_queries;
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}
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function get_saved_queries()
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{
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return $this->saved_queries;
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}
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function free_result($query_id = false)
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{
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return ($query_id) ? @mysqli_free_result($query_id) : false;
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}
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function escape($str)
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{
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return is_array($str) ? '' : mysqli_real_escape_string($this->link_id, $str);
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}
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function error()
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{
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$result['error_sql'] = @current(@end($this->saved_queries));
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$result['error_no'] = @mysqli_errno($this->link_id);
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$result['error_msg'] = @mysqli_error($this->link_id);
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return $result;
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}
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function close()
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{
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if ($this->link_id)
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{
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if ($this->query_result)
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@mysqli_free_result($this->query_result);
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return @mysqli_close($this->link_id);
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}
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else
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return false;
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}
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}
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