2 /************************************************************************
3 * MXChange v0.2.1 Start: 08/29/2004 *
4 * =============== Last change: 08/29/2004 *
6 * -------------------------------------------------------------------- *
7 * File : lib-mysql3.php *
8 * -------------------------------------------------------------------- *
9 * Short description : Database layer for MySQL +3.x server *
10 * -------------------------------------------------------------------- *
11 * Kurzbeschreibung : Datenbankschicht fuer MySQL +3.x Server *
12 * -------------------------------------------------------------------- *
14 * -------------------------------------------------------------------- *
15 * Copyright (c) 2003 - 2008 by Roland Haeder *
16 * For more information visit: http://www.mxchange.org *
18 * This program is free software; you can redistribute it and/or modify *
19 * it under the terms of the GNU General Public License as published by *
20 * the Free Software Foundation; either version 2 of the License, or *
21 * (at your option) any later version. *
23 * This program is distributed in the hope that it will be useful, *
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
26 * GNU General Public License for more details. *
28 * You should have received a copy of the GNU General Public License *
29 * along with this program; if not, write to the Free Software *
30 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *
32 ************************************************************************/
34 // Some security stuff...
35 if (ereg(basename(__FILE__), $_SERVER['PHP_SELF'])) {
36 $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
41 function SQL_QUERY($sql_string, $F, $L) {
42 global $link, $CSS, $_CONFIG, $OK;
44 // Remove \t, \n and \r from queries they may confuse some MySQL version I have heard
45 $sql_string = str_replace("\t", " ", str_replace("\n", " ", str_replace("\r", " ", $sql_string)));
48 $querytimeBefore = array_sum(explode(' ', microtime()));
51 //* DEBUG: */ echo $sql_string."<br />\n";
52 $result = @mysql_query($sql_string, $link)
53 or ADD_FATAL($F." (".$L."):".mysql_error()."<br />
54 ".MYSQL_QUERY_STRING."<br />
57 // Save last successfull query
58 $_CONFIG['db_last_query'] = $sql_string;
61 $querytimeAfter = array_sum(explode(' ', microtime()));
63 // Calculate query time
64 $queryTime = $querytimeAfter - $querytimeBefore;
67 if (!isset($_CONFIG['sql_count'])) $_CONFIG['sql_count'] = 0;
68 $_CONFIG['sql_count']++;
71 //* DEBUG: */ print "Query=<pre>".$sql_string."</pre>, affected=<b>".SQL_AFFECTEDROWS()."</b>, numrows=<b>".SQL_NUMROWS($result)."</b><br />\n";
73 if (($CSS != "1") && ($CSS != "-1") && (isBooleanConstantAndTrue('DEBUG_MODE')) && (isBooleanConstantAndTrue('DEBUG_SQL'))) {
77 $fp = @fopen(PATH."inc/cache/mysql.log", 'a') or mxchange_die("Cannot write mysql.log!");
80 fwrite($fp, "Module=".$GLOBALS['module']."\n");
83 fwrite($fp, $F."(LINE=".$L."|NUM=".SQL_NUMROWS($result)."|AFFECTED=".SQL_AFFECTEDROWS()."|QUERYTIME:".$queryTime."): ".str_replace('\r', "", str_replace('\n', " ", $sql_string))."\n");
88 if (!isset($_CONFIG['db_hits_run'])) {
89 // Count in dummy variable
90 $_CONFIG['db_hits_run'] = 1;
92 // Count to config array
93 $_CONFIG['db_hits_run']++;
101 function SQL_NUMROWS($result) {
102 // Is the result a valid resource?
103 if (is_resource($result)) {
104 // Get the count of rows from database
105 $lines = @mysql_num_rows($result);
107 // Is the result empty? Then we have an error!
108 if (empty($lines)) $lines = "0";
110 // No resource given, no lines found!
117 function SQL_AFFECTEDROWS($lnk="x", $F="dummy", $L="dummy") {
119 // $lnk will be ignored for now!
120 $lines = @mysql_affected_rows($link);
125 function SQL_FETCHROW($result) {
127 $DATA = @mysql_fetch_row($result);
132 function SQL_FETCHARRAY($res=false, $nr=0, $remove_numerical=true) {
133 // Is a result resource set?
134 if (!$res) return false;
139 // Load row from database
140 $row = @mysql_fetch_array($res);
142 // Return only arrays here
143 if (is_array($row)) {
144 // Shall we remove numerical data here automatically?
145 if ($remove_numerical) {
146 // So let's remove all numerical elements to save memory!
148 for ($idx = 0; $idx < ($max / 2); $idx++) {
157 // Return a false here...
163 function SQL_RESULT($res, $row, $field) {
164 $result = @mysql_result($res, $row, $field);
168 function SQL_CONNECT($host, $login, $password, $F, $L) {
169 $connect = @mysql_connect($host, $login, $password) or ADD_FATAL($F." (".$L."):".mysql_error());
172 // SQL select database
173 function SQL_SELECT_DB($dbName, $link, $F, $L) {
175 if (is_resource($link)) {
176 $select = @mysql_select_db($dbName, $link) or ADD_FATAL($F." (".$L."):".mysql_error());
181 function SQL_CLOSE(&$link, $F, $L) {
182 global $_CONFIG, $cacheInstance, $cacheArray;
184 // Is there still a valid link?
185 if (!is_resource($link)) {
191 $_CONFIG['db_hits'] += $_CONFIG['db_hits_run'];
192 //* DEBUG: */ echo "DB=".$_CONFIG['db_hits'].",CACHE=".$_CONFIG['cache_hits']."<br />\n";
193 if ((GET_EXT_VERSION("cache") >= "0.0.7") && (isset($_CONFIG['db_hits'])) && (isset($_CONFIG['cache_hits'])) && (is_object($cacheInstance))) {
194 // Update counter for db/cache
195 UPDATE_CONFIG(array("db_hits", "cache_hits"), array(bigintval($_CONFIG['db_hits']), bigintval($_CONFIG['cache_hits'])));
198 // Close database link and forget the link
199 $close = @mysql_close($link) or ADD_FATAL($F." (".$L."):".mysql_error());
204 function SQL_FREERESULT($result) {
205 $res = @mysql_free_result($result);
208 // SQL string escaping
209 function SQL_QUERY_ESC($qstring, $data, $file, $line, $run=true, $strip=true) {
212 $eval = "\$query = sprintf(\"".$qstring."\"";
213 foreach ($data as $var) {
214 if ((!empty($var)) || ($var === 0)) {
216 $eval .= ", SQL_ESCAPE(\"".strip_tags($var)."\")";
218 $eval .= ", SQL_ESCAPE(\"".$var."\")";
228 //$fp = fopen(PATH."inc/cache/escape_debug.log", 'a') or mxchange_die("Cannot write debug.log!");
229 //fwrite($fp, $file."(".$line."): ".str_replace("\r", "", str_replace("\n", " ", $eval))."\n");
233 print "eval=".htmlentities($eval)."<pre>";
234 debug_print_backtrace();
238 // Run SQL query (default)
239 return SQL_QUERY($query, $file, $line);
241 // Return secured string
245 // Get ID from last INSERT command
246 function SQL_INSERTID() {
247 return @mysql_insert_id();
249 // Escape a string for the database
250 function SQL_ESCAPE($str, $secureString = true) {
253 // Secure string first? (which is the default behaviour!)
256 $str = secureString($str);
259 if (!is_resource($link)) {
260 // Fall-back to addslashes() when there is no link
261 return addslashes($str);
264 if (function_exists('mysql_real_escape_string')) {
265 // The new and improved version
266 return mysql_real_escape_string($str, $link);
267 } elseif (function_exists('mysql_escape_string')) {
268 // The obsulete function
269 return mysql_escape_string($str, $link);
271 // If nothing else works
272 return addslashes($str);
275 // SELECT query string from table, columns and so on... ;-)
276 function SQL_RESULT_FROM_ARRAY ($table, $columns, $idRow, $id) {
277 // Prepare the SQL statement
278 $SQL = "SELECT ".implode(", ", $columns)." FROM "._MYSQL_PREFIX."_".$table." WHERE ".$idRow."=%s LIMIT 1";
281 return SQL_QUERY_ESC($SQL, array(bigintval($id)), __FILE__, __LINE__);
283 // ALTER TABLE wrapper function
284 function SQL_ALTER_TABLE($sql, $F, $L) {
286 if (eregi("ADD", $sql) > 0) {
287 // Extract table name
288 $tableArray = explode(" ", $sql);
289 $tableName = str_replace("`", "", $tableArray[2]);
291 // And column name as well
292 $columnName = str_replace("`", "", $tableArray[4]);
294 // Get column information
295 $result = SQL_QUERY_ESC("SHOW COLUMNS FROM %s LIKE '%s'",
296 array($tableName, $columnName), __FILE__, __LINE__);
298 // Do we have no entry?
299 if (SQL_NUMROWS($result) == 0) {
301 return SQL_QUERY($sql, $F, $L, false);
304 // Send it to the SQL_QUERY() function
305 return SQL_QUERY($sql, $F, $L, false);