0
|
1 |
<?php
|
|
2 |
/***********************************************************************
|
|
3 |
|
|
4 |
Copyright (C) 2002-2005 Rickard Andersson (rickard@punbb.org)
|
|
5 |
|
|
6 |
This file is part of PunBB.
|
|
7 |
|
|
8 |
PunBB is free software; you can redistribute it and/or modify it
|
|
9 |
under the terms of the GNU General Public License as published
|
|
10 |
by the Free Software Foundation; either version 2 of the License,
|
|
11 |
or (at your option) any later version.
|
|
12 |
|
|
13 |
PunBB is distributed in the hope that it will be useful, but
|
|
14 |
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
15 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
16 |
GNU General Public License for more details.
|
|
17 |
|
|
18 |
You should have received a copy of the GNU General Public License
|
|
19 |
along with this program; if not, write to the Free Software
|
|
20 |
Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
21 |
MA 02111-1307 USA
|
|
22 |
|
|
23 |
************************************************************************/
|
|
24 |
|
|
25 |
|
|
26 |
// Make sure we have built in support for MySQL
|
|
27 |
if (!function_exists('mysql_connect'))
|
|
28 |
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.');
|
|
29 |
|
|
30 |
|
|
31 |
class DBLayer
|
|
32 |
{
|
|
33 |
var $prefix;
|
|
34 |
var $link_id;
|
|
35 |
var $query_result;
|
|
36 |
|
|
37 |
var $saved_queries = array();
|
|
38 |
var $num_queries = 0;
|
|
39 |
|
|
40 |
|
|
41 |
function DBLayer($db_host, $db_username, $db_password, $db_name, $db_prefix, $p_connect)
|
|
42 |
{
|
|
43 |
$this->prefix = $db_prefix;
|
|
44 |
|
|
45 |
if ($p_connect)
|
|
46 |
$this->link_id = @mysql_pconnect($db_host, $db_username, $db_password);
|
|
47 |
else
|
|
48 |
$this->link_id = @mysql_connect($db_host, $db_username, $db_password);
|
|
49 |
|
|
50 |
if ($this->link_id)
|
|
51 |
{
|
|
52 |
if (@mysql_select_db($db_name, $this->link_id))
|
|
53 |
return $this->link_id;
|
|
54 |
else
|
|
55 |
error('Unable to select database. MySQL reported: '.mysql_error(), __FILE__, __LINE__);
|
|
56 |
}
|
|
57 |
else
|
|
58 |
error('Unable to connect to MySQL server. MySQL reported: '.mysql_error(), __FILE__, __LINE__);
|
|
59 |
}
|
|
60 |
|
|
61 |
|
|
62 |
function start_transaction()
|
|
63 |
{
|
|
64 |
return;
|
|
65 |
}
|
|
66 |
|
|
67 |
|
|
68 |
function end_transaction()
|
|
69 |
{
|
|
70 |
return;
|
|
71 |
}
|
|
72 |
|
|
73 |
|
|
74 |
function query($sql, $unbuffered = false)
|
|
75 |
{
|
|
76 |
if (defined('PUN_SHOW_QUERIES'))
|
|
77 |
$q_start = get_microtime();
|
|
78 |
|
|
79 |
if ($unbuffered)
|
|
80 |
$this->query_result = @mysql_unbuffered_query($sql, $this->link_id);
|
|
81 |
else
|
|
82 |
$this->query_result = @mysql_query($sql, $this->link_id);
|
|
83 |
|
|
84 |
if ($this->query_result)
|
|
85 |
{
|
|
86 |
if (defined('PUN_SHOW_QUERIES'))
|
|
87 |
$this->saved_queries[] = array($sql, sprintf('%.5f', get_microtime() - $q_start));
|
|
88 |
|
|
89 |
++$this->num_queries;
|
|
90 |
|
|
91 |
return $this->query_result;
|
|
92 |
}
|
|
93 |
else
|
|
94 |
{
|
|
95 |
if (defined('PUN_SHOW_QUERIES'))
|
|
96 |
$this->saved_queries[] = array($sql, 0);
|
|
97 |
|
|
98 |
return false;
|
|
99 |
}
|
|
100 |
}
|
|
101 |
|
|
102 |
|
|
103 |
function result($query_id = 0, $row = 0)
|
|
104 |
{
|
|
105 |
return ($query_id) ? @mysql_result($query_id, $row) : false;
|
|
106 |
}
|
|
107 |
|
|
108 |
|
|
109 |
function fetch_assoc($query_id = 0)
|
|
110 |
{
|
|
111 |
return ($query_id) ? @mysql_fetch_assoc($query_id) : false;
|
|
112 |
}
|
|
113 |
|
|
114 |
|
|
115 |
function fetch_row($query_id = 0)
|
|
116 |
{
|
|
117 |
return ($query_id) ? @mysql_fetch_row($query_id) : false;
|
|
118 |
}
|
|
119 |
|
|
120 |
|
|
121 |
function num_rows($query_id = 0)
|
|
122 |
{
|
|
123 |
return ($query_id) ? @mysql_num_rows($query_id) : false;
|
|
124 |
}
|
|
125 |
|
|
126 |
|
|
127 |
function affected_rows()
|
|
128 |
{
|
|
129 |
return ($this->link_id) ? @mysql_affected_rows($this->link_id) : false;
|
|
130 |
}
|
|
131 |
|
|
132 |
|
|
133 |
function insert_id()
|
|
134 |
{
|
|
135 |
return ($this->link_id) ? @mysql_insert_id($this->link_id) : false;
|
|
136 |
}
|
|
137 |
|
|
138 |
|
|
139 |
function get_num_queries()
|
|
140 |
{
|
|
141 |
return $this->num_queries;
|
|
142 |
}
|
|
143 |
|
|
144 |
|
|
145 |
function get_saved_queries()
|
|
146 |
{
|
|
147 |
return $this->saved_queries;
|
|
148 |
}
|
|
149 |
|
|
150 |
|
|
151 |
function free_result($query_id = false)
|
|
152 |
{
|
|
153 |
return ($query_id) ? @mysql_free_result($query_id) : false;
|
|
154 |
}
|
|
155 |
|
|
156 |
|
|
157 |
function escape($str)
|
|
158 |
{
|
|
159 |
if (is_array($str))
|
|
160 |
return '';
|
|
161 |
else if (function_exists('mysql_real_escape_string'))
|
|
162 |
return mysql_real_escape_string($str, $this->link_id);
|
|
163 |
else
|
|
164 |
return mysql_escape_string($str);
|
|
165 |
}
|
|
166 |
|
|
167 |
|
|
168 |
function error()
|
|
169 |
{
|
|
170 |
$result['error_sql'] = @current(@end($this->saved_queries));
|
|
171 |
$result['error_no'] = @mysql_errno($this->link_id);
|
|
172 |
$result['error_msg'] = @mysql_error($this->link_id);
|
|
173 |
|
|
174 |
return $result;
|
|
175 |
}
|
|
176 |
|
|
177 |
|
|
178 |
function close()
|
|
179 |
{
|
|
180 |
if ($this->link_id)
|
|
181 |
{
|
|
182 |
if ($this->query_result)
|
|
183 |
@mysql_free_result($this->query_result);
|
|
184 |
|
|
185 |
return @mysql_close($this->link_id);
|
|
186 |
}
|
|
187 |
else
|
|
188 |
return false;
|
|
189 |
}
|
|
190 |
}
|