4 * Nucleus: PHP/MySQL Weblog CMS (http://nucleuscms.org/)
5 * Copyright (C) 2002-2009 The Nucleus Group
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 * (see nucleus/documentation/index.html#license for more info)
14 * @license http://nucleuscms.org/license.txt GNU General Public License
15 * @copyright Copyright (C) 2002-2009 The Nucleus Group
20 * complete sql_* wrappers for mysql functions
22 * functions moved from globalfunctions.php: sql_connect, sql_disconnect, sql_query
28 if (function_exists('mysql_query') && !function_exists('sql_fetch_assoc'))
31 * Errors before the database connection has been made
33 function startUpError($msg, $title) {
35 <html xmlns="http://www.w3.org/1999/xhtml">
36 <head><title><?php echo i18n::hsc($title)?></title></head>
38 <h1><?php echo i18n::hsc($title)?></h1>
47 * Connects to mysql server with arguments
49 function sql_connect_args($mysql_host = 'localhost', $mysql_user = '', $mysql_password = '', $mysql_database = '') {
51 $CONN = @mysql_connect($mysql_host, $mysql_user, $mysql_password);
53 if ( $mysql_database )
55 mysql_select_db($mysql_database,$CONN);
56 sql_set_charset('utf8');
61 $result = sql_query('SHOW VARIABLES LIKE \'char%\';');
62 while(FALSE !== ($row = sql_fetch_row($result)))
64 echo "{$row[0]}: {$row[1]}\n";
72 * Connects to mysql server
74 function sql_connect() {
75 global $MYSQL_HOST, $MYSQL_USER, $MYSQL_PASSWORD, $MYSQL_DATABASE, $MYSQL_CONN;
77 $MYSQL_CONN = @mysql_connect($MYSQL_HOST, $MYSQL_USER, $MYSQL_PASSWORD) or startUpError('<p>Could not connect to MySQL database.</p>', 'Connect Error');
78 mysql_select_db($MYSQL_DATABASE) or startUpError('<p>Could not select database: ' . mysql_error() . '</p>', 'Connect Error');
80 sql_set_charset('utf8');
84 $result = sql_query('SHOW VARIABLES LIKE \'char%\';');
85 while(FALSE !== ($row = sql_fetch_row($result)))
87 echo "{$row[0]}: {$row[1]}\n";
95 * disconnects from SQL server
97 function sql_disconnect($conn = false) {
99 if (!$conn) $conn = $MYSQL_CONN;
103 function sql_close($conn = false) {
105 if (!$conn) $conn = $MYSQL_CONN;
110 * executes an SQL query
112 function sql_query($query,$conn = false) {
113 global $SQLCount,$MYSQL_CONN;
114 if (!$conn) $conn = $MYSQL_CONN;
116 $res = mysql_query($query,$conn) or print("mySQL error with query $query: " . mysql_error($conn) . '<p />');
121 * executes an SQL error
123 function sql_error($conn = false)
126 if (!$conn) $conn = $MYSQL_CONN;
127 return mysql_error($conn);
131 * executes an SQL db select
133 function sql_select_db($db,$conn = false)
136 if (!$conn) $conn = $MYSQL_CONN;
137 return mysql_select_db($db,$conn);
141 * executes an SQL real escape
143 function sql_real_escape_string($val, $conn = false)
148 $conn =& $MYSQL_CONN;
150 return mysql_real_escape_string($val, $conn);
154 * executes an PDO::quote() like escape, ie adds quotes arround the string and escapes chars as needed
156 function sql_quote_string($val,$conn = false) {
158 if (!$conn) $conn = $MYSQL_CONN;
159 return "'".mysql_real_escape_string($val,$conn)."'";
163 * executes an SQL insert id
165 function sql_insert_id($conn = false)
168 if (!$conn) $conn = $MYSQL_CONN;
169 return mysql_insert_id($conn);
173 * executes an SQL result request
175 function sql_result($res, $row, $col)
177 return mysql_result($res,$row,$col);
181 * frees sql result resources
183 function sql_free_result($res)
185 return mysql_free_result($res);
189 * returns number of rows in SQL result
191 function sql_num_rows($res)
193 return mysql_num_rows($res);
197 * returns number of rows affected by SQL query
199 function sql_affected_rows($conn = false)
202 if (!$conn) $conn = $MYSQL_CONN;
203 return mysql_affected_rows($conn);
207 * Get number of fields in result
209 function sql_num_fields($res)
211 return mysql_num_fields($res);
215 * fetches next row of SQL result as an associative array
217 function sql_fetch_assoc($res)
219 return mysql_fetch_assoc($res);
223 * Fetch a result row as an associative array, a numeric array, or both
225 function sql_fetch_array($res)
227 return mysql_fetch_array($res);
231 * fetches next row of SQL result as an object
233 function sql_fetch_object($res)
235 return mysql_fetch_object($res);
239 * Get a result row as an enumerated array
241 function sql_fetch_row($res)
243 return mysql_fetch_row($res);
247 * Get column information from a result and return as an object
249 function sql_fetch_field($res,$offset = 0)
251 return mysql_fetch_field($res,$offset);
255 * Get current system status (returns string)
257 function sql_stat($conn=false)
260 if (!$conn) $conn = $MYSQL_CONN;
261 return mysql_stat($conn);
265 * Returns the name of the character set
267 function sql_client_encoding($conn=false)
270 if (!$conn) $conn = $MYSQL_CONN;
271 return mysql_client_encoding($conn);
275 * Get SQL client version
277 function sql_get_client_info()
279 return mysql_get_client_info();
283 * Get SQL server version
285 function sql_get_server_info($conn=false)
288 if (!$conn) $conn = $MYSQL_CONN;
289 return mysql_get_server_info($conn);
293 * Returns a string describing the type of SQL connection in use for the connection or FALSE on failure
295 function sql_get_host_info($conn=false)
298 if (!$conn) $conn = $MYSQL_CONN;
299 return mysql_get_host_info($conn);
303 * Returns the SQL protocol on success, or FALSE on failure.
305 function sql_get_proto_info($conn=false)
308 if (!$conn) $conn = $MYSQL_CONN;
309 return mysql_get_proto_info($conn);
313 * Get the name of the specified field in a result
315 function sql_field_name($res, $offset = 0)
317 return mysql_field_name($res, $offset);
321 * Set character encodings in each fields related to MySQL connection.
323 function sql_set_charset($charset)
330 * We decided to ignore which character encodings is set in each text field of MySQL table!
332 * There are differences between "SET NAMES xxx;" and "SET CHARACTER SET xxx;"
333 * according MySQL version.
334 * http://dev.mysql.com/doc/refman/4.1/en/charset-connection.html
335 * http://dev.mysql.com/doc/refman/5.1/en/charset-connection.html
337 * And mysql_set_charset() execute "SET NAMES xxx;" internally and set mysql->charset as xxx.
338 * refering to MySQL C API.
339 * http://dev.mysql.com/doc/refman/5.1/ja/mysql-set-character-set.html
340 * http://php.net/manual/en/function.mysql-set-charset.php
342 * mysql_real_escape_string() is affected by mysql->charset,
343 * refering to MySQL C API.
344 * http://dev.mysql.com/doc/refman/5.1/en/mysql-real-escape-string.html
345 * http://php.net/manual/en/function.mysql-real-escape-string.php
347 * But using the same character encoding in character_set_client and the strings is
348 * more important than mysql->charset
349 * because mysql_real_escape_string() escape some characters in ASCII character set.
352 $charset = strtolower($charset);
353 $mysql_version = preg_replace('#^([0-9]{1,2})\.([0-9]{1,2})\.([0-9]{1,2})(.*)$#', '$1.$2.$3', sql_get_server_info($MYSQL_CONN));
355 if ( version_compare($mysql_version, '5.0.7', '>=') && function_exists('mysql_set_charset') )
357 $result = mysql_set_charset($charset);
359 else if ( version_compare($mysql_version, '5.0.7', '<') )
361 $result = sql_query("SET CHARACTER SET {$charset};");
365 $result = sql_query("SET NAMES {$charset};");
371 /**************************************************************************
372 Unimplemented mysql_* functions
374 # mysql_ data_ seek (maybe useful)
375 # mysql_ errno (maybe useful)
376 # mysql_ fetch_ lengths (maybe useful)
377 # mysql_ field_ flags (maybe useful)
378 # mysql_ field_ len (maybe useful)
379 # mysql_ field_ seek (maybe useful)
380 # mysql_ field_ table (maybe useful)
381 # mysql_ field_ type (maybe useful)
382 # mysql_ info (maybe useful)
383 # mysql_ list_ processes (maybe useful)
384 # mysql_ ping (maybe useful)
385 # mysql_ set_ charset (maybe useful, requires php >=5.2.3 and mysql >=5.0.7)
386 # mysql_ thread_ id (maybe useful)
388 # mysql_ db_ name (useful only if working on multiple dbs which we do not do)
389 # mysql_ list_ dbs (useful only if working on multiple dbs which we do not do)
391 # mysql_ pconnect (probably not useful and could cause some unintended performance issues)
392 # mysql_ unbuffered_ query (possibly useful, but complicated and not supported by all database drivers (pdo))
394 # mysql_ change_ user (deprecated)
395 # mysql_ create_ db (deprecated)
396 # mysql_ db_ query (deprecated)
397 # mysql_ drop_ db (deprecated)
398 # mysql_ escape_ string (deprecated)
399 # mysql_ list_ fields (deprecated)
400 # mysql_ list_ tables (deprecated)
401 # mysql_ tablename (deprecated)
403 *******************************************************************/