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 (!defined('__SECURITY')) {
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, $link)
53 or addFatalMessage($F." (".$L."):".mysql_error()."<br />
58 $querytimeAfter = array_sum(explode(' ', microtime()));
60 // Calculate query time
61 $queryTime = $querytimeAfter - $querytimeBefore;
63 // Save last successfull query
64 $_CONFIG['db_last_query'] = $sql_string;
67 incrementConfigEntry('sql_count');
70 //* DEBUG: */ print "Query=<pre>".$sql_string."</pre>, affected=<strong>".SQL_AFFECTEDROWS()."</strong>, numrows=<strong>".SQL_NUMROWS($result)."</strong><br />\n";
72 if (($CSS != "1") && ($CSS != "-1") && (isBooleanConstantAndTrue('DEBUG_MODE')) && (isBooleanConstantAndTrue('DEBUG_SQL'))) {
76 $fp = @fopen(PATH."inc/cache/mysql.log", 'a') or mxchange_die("Cannot write mysql.log!");
79 fwrite($fp, "Module=".$GLOBALS['module']."\n");
82 fwrite($fp, $F."(LINE=".$L."|NUM=".SQL_NUMROWS($result)."|AFFECTED=".SQL_AFFECTEDROWS()."|QUERYTIME:".$queryTime."): ".str_replace('\r', "", str_replace('\n', " ", $sql_string))."\n");
87 if (getConfig('db_hits_run') == null) {
88 // Count in dummy variable
89 $_CONFIG['db_hits_run'] = 1;
91 // Count to config array
92 $_CONFIG['db_hits_run']++;
100 function SQL_NUMROWS($result) {
101 // Is the result a valid resource?
102 if (is_resource($result)) {
103 // Get the count of rows from database
104 $lines = @mysql_num_rows($result);
106 // Is the result empty? Then we have an error!
107 if (empty($lines)) $lines = 0;
109 // No resource given, no lines found!
116 function SQL_AFFECTEDROWS() {
119 // Valid link resource?
120 if (!is_resource($link)) return false;
123 $lines = @mysql_affected_rows($link);
130 function SQL_FETCHROW($result) {
134 // Is a result resource set?
135 if (!is_resource($result)) return false;
137 $DATA = @mysql_fetch_row($result);
142 function SQL_FETCHARRAY($res, $nr=0, $remove_numerical=true) {
143 // Is a result resource set?
144 if (!is_resource($res)) return false;
149 // Load row from database
150 $row = @mysql_fetch_array($res);
152 // Return only arrays here
153 if (is_array($row)) {
154 // Shall we remove numerical data here automatically?
155 if ($remove_numerical) {
156 // So let's remove all numerical elements to save memory!
158 for ($idx = 0; $idx < ($max / 2); $idx++) {
167 // Return a false here...
173 function SQL_RESULT($res, $row, $field) {
174 $result = @mysql_result($res, $row, $field);
178 function SQL_CONNECT($host, $login, $password, $F, $L) {
179 $connect = @mysql_connect($host, $login, $password) or addFatalMessage($F." (".$L."):".mysql_error());
182 // SQL select database
183 function SQL_SELECT_DB($dbName, $link, $F, $L) {
185 if (is_resource($link)) {
186 $select = @mysql_select_db($dbName, $link) or addFatalMessage($F." (".$L."):".mysql_error());
191 function SQL_CLOSE(&$link, $F, $L) {
192 global $_CONFIG, $cacheInstance, $cacheArray;
194 // Is there still a valid link?
195 if (!is_resource($link)) {
200 // Do we need to update cache/db counter?
201 //* DEBUG: */ echo "DB=".getConfig('db_hits').",CACHE=".getConfig('cache_hits')."<br />\n";
202 if ((GET_EXT_VERSION("cache") >= "0.0.7") && (getConfig('db_hits') > 0) && (getConfig('cache_hits') > 0) && (is_object($cacheInstance))) {
204 $_CONFIG['db_hits'] += getConfig('db_hits_run');
206 // Update counter for db/cache
207 UPDATE_CONFIG(array("db_hits", "cache_hits"), array(bigintval(getConfig('db_hits')), bigintval(getConfig('cache_hits'))));
210 // Close database link and forget the link
211 $close = mysql_close($link) or addFatalMessage($F." (".$L."):".mysql_error());
216 function SQL_FREERESULT($result) {
217 if (!is_resource($result)) {
222 $res = @mysql_free_result($result);
225 // SQL string escaping
226 function SQL_QUERY_ESC($qstring, $data, $file, $line, $run=true, $strip=true) {
236 $eval = "\$query = sprintf(\"".$qstring."\"";
237 foreach ($data as $var) {
238 if ((!empty($var)) || ($var === 0)) {
239 $eval .= ", SQL_ESCAPE(\"".$var."\",true,".$strip.")";
248 //* DEBUG: */ $fp = fopen(PATH."inc/cache/escape_debug.log", 'a') or mxchange_die("Cannot write debug.log!");
249 //* DEBUG: */ fwrite($fp, $file."(".$line."): ".str_replace("\r", "", str_replace("\n", " ", $eval))."\n");
250 //* DEBUG: */ fclose($fp);
255 // Was the eval() command fine?
257 // Something went wrong?
258 print "eval=".htmlentities($eval)."<pre>";
259 debug_print_backtrace();
264 // Run SQL query (default)
265 return SQL_QUERY($query, $file, $line);
267 // Return secured string
271 // Get ID from last INSERT command
272 function SQL_INSERTID() {
273 return @mysql_insert_id();
275 // Escape a string for the database
276 function SQL_ESCAPE($str, $secureString=true,$strip=true) {
279 // Secure string first? (which is the default behaviour!)
282 $str = secureString($str, $strip);
285 if (!is_resource($link)) {
286 // Fall-back to addslashes() when there is no link
287 return addslashes($str);
290 if (function_exists('mysql_real_escape_string')) {
291 // The new and improved version
292 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):str={$str}<br />\n";
293 return mysql_real_escape_string($str, $link);
294 } elseif (function_exists('mysql_escape_string')) {
295 // The obsolete function
296 return mysql_escape_string($str, $link);
298 // If nothing else works
299 return addslashes($str);
302 // SELECT query string from table, columns and so on... ;-)
303 function SQL_RESULT_FROM_ARRAY ($table, $columns, $idRow, $id, $F, $L) {
304 // Prepare the SQL statement
305 $SQL = "SELECT ".implode(", ", $columns)." FROM "._MYSQL_PREFIX."_".$table." WHERE ".$idRow."=%s LIMIT 1";
308 return SQL_QUERY_ESC($SQL, array(bigintval($id)), $F, $L);
310 // ALTER TABLE wrapper function
311 function SQL_ALTER_TABLE($sql, $F, $L) {
313 if (eregi("ADD", $sql) > 0) {
314 // Extract table name
315 $tableArray = explode(" ", $sql);
316 $tableName = str_replace("`", "", $tableArray[2]);
318 // And column name as well
319 $columnName = str_replace("`", "", $tableArray[4]);
321 // Get column information
322 $result = SQL_QUERY_ESC("SHOW COLUMNS FROM %s LIKE '%s'",
323 array($tableName, $columnName), $F, $L);
325 // Do we have no entry?
326 if (SQL_NUMROWS($result) == 0) {
328 return SQL_QUERY($sql, $F, $L, false);
331 // Send it to the SQL_QUERY() function
332 return SQL_QUERY($sql, $F, $L, false);