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) {
43 if (!SQL_IS_LINK_UP()) return false;
45 // Remove \t, \n and \r from queries they may confuse some MySQL version I have heard
46 $sql_string = str_replace("\t", " ", str_replace("\n", " ", str_replace("\r", " ", $sql_string)));
48 // Replace {!_MYSQL_PREFIX!} with constant, closes #84. Thanks to profi-concept
49 $sql_string = str_replace("{!_MYSQL_PREFIX!}", constant('_MYSQL_PREFIX'), $sql_string);
52 $querytimeBefore = array_sum(explode(' ', microtime()));
55 //* DEBUG: */ echo $sql_string."<br />\n";
56 $result = mysql_query($sql_string, SQL_GET_LINK())
57 or addFatalMessage(__FUNCTION__, __LINE__, $F." (".$L."):".mysql_error()."<br />
62 $querytimeAfter = array_sum(explode(' ', microtime()));
64 // Calculate query time
65 $queryTime = $querytimeAfter - $querytimeBefore;
67 // Save last successfull query
68 setConfigEntry('db_last_query', $sql_string);
71 incrementConfigEntry('sql_count');
74 //* DEBUG: */ print "Query=<pre>".$sql_string."</pre>, affected=<strong>".SQL_AFFECTEDROWS()."</strong>, numrows=<strong>".SQL_NUMROWS($result)."</strong><br />\n";
75 if (($GLOBALS['output_mode'] != "1") && ($GLOBALS['output_mode'] != "-1") && (isDebugModeEnabled()) && (isBooleanConstantAndTrue('DEBUG_SQL'))) {
79 $fp = fopen(constant('PATH')."inc/cache/mysql.log", 'a') or mxchange_die("Cannot write mysql.log!");
80 if (!isset($GLOBALS['sql_first_entry'])) {
82 fwrite($fp, "Module=".$GLOBALS['module']."\n");
83 $GLOBALS['sql_first_entry'] = true;
85 fwrite($fp, $F."(LINE=".$L."|NUM=".SQL_NUMROWS($result)."|AFFECTED=".SQL_AFFECTEDROWS()."|QUERYTIME:".$queryTime."): ".str_replace('\r', "", str_replace('\n', " ", $sql_string))."\n");
90 if (!isConfigEntrySet('db_hits_run')) {
91 // Count in dummy variable
92 setConfigEntry('db_hits_run', 1);
94 // Count to config array
95 incrementConfigEntry('db_hits_run');
103 function SQL_NUMROWS ($result) {
104 // Is the result a valid resource?
105 if (is_resource($result)) {
106 // Get the count of rows from database
107 $lines = mysql_num_rows($result);
109 // Is the result empty? Then we have an error!
110 if (empty($lines)) $lines = 0;
112 // No resource given, no lines found!
119 function SQL_AFFECTEDROWS() {
120 // Valid link resource?
121 if (!SQL_IS_LINK_UP()) return false;
124 $lines = mysql_affected_rows(SQL_GET_LINK());
131 function SQL_FETCHROW($result) {
135 // Is a result resource set?
136 if (!is_resource($result)) return false;
138 $DATA = mysql_fetch_row($result);
143 function SQL_FETCHARRAY($res, $nr=0, $remove_numerical=true) {
144 // Is a result resource set?
145 if (!is_resource($res)) return false;
150 // Load row from database
151 $row = mysql_fetch_array($res);
153 // Return only arrays here
154 if (is_array($row)) {
155 // Shall we remove numerical data here automatically?
156 if ($remove_numerical) {
157 // So let's remove all numerical elements to save memory!
159 for ($idx = 0; $idx < ($max / 2); $idx++) {
168 // Return a false here...
174 function SQL_RESULT ($res, $row, $field) {
175 $result = mysql_result($res, $row, $field);
180 function SQL_CONNECT ($host, $login, $password, $F, $L) {
182 $connect = mysql_connect($host, $login, $password) or addFatalMessage(__FUNCTION__, __LINE__, $F." (".$L."):".mysql_error());
184 // Set the link resource
185 SQL_SET_LINK($connect);
188 // SQL select database
189 function SQL_SELECT_DB ($dbName, $F, $L) {
190 // Is there still a valid link? If not, skip it.
191 if (!SQL_IS_LINK_UP()) return false;
194 return mysql_select_db($dbName, SQL_GET_LINK()) or addFatalMessage(__FUNCTION__, __LINE__, $F." (".$L."):".mysql_error());
198 function SQL_CLOSE ($F, $L) {
199 if (!SQL_IS_LINK_UP()) {
204 // Do we need to update cache/db counter?
205 //* DEBUG: */ echo "DB=".getConfig('db_hits').",CACHE=".getConfig('cache_hits')."<br />\n";
206 if ((GET_EXT_VERSION("cache") >= "0.0.7") && (getConfig('db_hits') > 0) && (getConfig('cache_hits') > 0) && (is_object($GLOBALS['cache_instance']))) {
208 incrementConfigEntry('db_hits', getConfig('db_hits_run'));
210 // Update counter for db/cache
211 UPDATE_CONFIG(array("db_hits", "cache_hits"), array(bigintval(getConfig('db_hits')), bigintval(getConfig('cache_hits'))));
214 // Close database link and forget the link
215 $close = mysql_close(SQL_GET_LINK()) or addFatalMessage(__FUNCTION__, __LINE__, $F." (".$L."):".mysql_error());
225 function SQL_FREERESULT ($result) {
226 if (!is_resource($result)) {
231 $res = mysql_free_result($result);
235 // SQL string escaping
236 function SQL_QUERY_ESC ($qstring, $data, $F, $L, $run=true, $strip=true) {
238 if (!SQL_IS_LINK_UP()) return false;
249 $eval = "\$query = sprintf(\"".$qstring."\"";
250 foreach ($data as $var) {
251 if ((!empty($var)) || ($var === 0)) {
252 $eval .= ", SQL_ESCAPE(\"".$var."\",true,".$strip.")";
261 //* DEBUG: */ $fp = fopen(constant('PATH')."inc/cache/escape_debug.log", 'a') or mxchange_die("Cannot write debug.log!");
262 //* DEBUG: */ fwrite($fp, $F."(".$L."): ".str_replace("\r", "", str_replace("\n", " ", $eval))."\n");
263 //* DEBUG: */ fclose($fp);
268 // Was the eval() command fine?
269 if ($query == "failed") {
270 // Something went wrong?
271 debug_report_bug("eval={$eval}");
275 // Run SQL query (default)
276 return SQL_QUERY($query, $F, $L);
278 // Return secured string
283 // Get ID from last INSERT command
284 function SQL_INSERTID () {
285 if (!SQL_IS_LINK_UP()) return false;
286 return mysql_insert_id();
289 // Escape a string for the database
290 function SQL_ESCAPE ($str, $secureString=true, $strip=true) {
291 // Secure string first? (which is the default behaviour!)
294 $str = secureString($str, $strip);
297 if (!SQL_IS_LINK_UP()) {
298 // Fall-back to smartAddSlashes() when there is no link
299 return smartAddSlashes($str);
300 } elseif (function_exists('mysql_real_escape_string')) {
301 // The new and improved version
302 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):str={$str}<br />\n";
303 return mysql_real_escape_string($str, SQL_GET_LINK());
304 } elseif (function_exists('mysql_escape_string')) {
305 // The obsolete function
306 return mysql_escape_string($str, SQL_GET_LINK());
308 // If nothing else works, fall back to smartAddSlashes()
309 return smartAddSlashes($str);
313 // SELECT query string from table, columns and so on... ;-)
314 function SQL_RESULT_FROM_ARRAY ($table, $columns, $idRow, $id, $F, $L) {
315 // Is columns an array?
316 if (!is_array($columns)) {
318 trigger_error(sprintf("columns is not array. %s!=array", gettype($columns)));
321 // Prepare the SQL statement
322 $sql = "SELECT `".implode("`, `", $columns)."` FROM `{!_MYSQL_PREFIX!}_%s` WHERE ``='%s' LIMIT 1";
325 return SQL_QUERY_ESC($sql,
333 // ALTER TABLE wrapper function
334 function SQL_ALTER_TABLE ($sql, $F, $L) {
335 // This is the default result...
338 // Determine index/fulltext/unique word
339 // 12 3 3 2 2 3 3 2 2 3 3 21
340 $noIndex = ((eregi("INDEX", $sql) == false) && (eregi("FULLTEXT", $sql) == false) && (eregi("UNIQUE", $sql) == false));
342 // Shall we add/drop?
343 if (((eregi("ADD", $sql) > 0) || (eregi("DROP", $sql) > 0)) && ($noIndex)) {
344 // Extract table name
345 $tableArray = explode(" ", $sql);
346 $tableName = str_replace("`", "", $tableArray[2]);
348 // And column name as well
349 $columnName = str_replace("`", "", $tableArray[4]);
351 // Get column information
352 $result = SQL_QUERY_ESC("SHOW COLUMNS FROM %s LIKE '%s'",
353 array($tableName, $columnName), $F, $L);
355 // Do we have no entry on ADD or an entry on DROP?
356 // 123 4 4 3 3 4 4 32 23 4 4 3 3 4 4 321
357 if (((SQL_NUMROWS($result) == 0) && (eregi("ADD", $sql) > 0)) || ((SQL_NUMROWS($result) == 1) && (eregi("DROP", $sql) > 0))) {
359 $result = SQL_QUERY($sql, $F, $L, false);
362 // Send it to the SQL_QUERY() function
363 $result = SQL_QUERY($sql, $F, $L, false);
370 // Getter for SQL link
371 function SQL_GET_LINK () {
375 // Is it in the globals?
376 if (isset($GLOBALS['sql_link'])) {
378 $link = $GLOBALS['sql_link'];
386 function SQL_SET_LINK ($link) {
387 // Is this a resource or null?
388 if ((!is_resource($link)) && (!is_null($link))) {
389 // This should never happen!
390 trigger_error(sprintf("link is not resource or null. Type: %s", gettype($link)));
394 $GLOBALS['sql_link'] = $link;
397 // Checks if the link is up
398 function SQL_IS_LINK_UP () {
400 $link = SQL_GET_LINK();
403 return (is_resource($link));