443
by dcoles
Added Forum application along with unmodifed version of phpBB3 "Olympus" 3.0.0 |
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<?php
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/**
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*
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* @package dbal
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* @version $Id: mysql.php,v 1.62 2007/10/05 14:36:32 acydburn Exp $
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* @copyright (c) 2005 phpBB Group
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License
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*
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*/
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/**
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* @ignore
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*/
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if (!defined('IN_PHPBB')) |
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{
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exit; |
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}
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include_once($phpbb_root_path . 'includes/db/dbal.' . $phpEx); |
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/**
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* MySQL4 Database Abstraction Layer
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* Compatible with:
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* MySQL 3.23+
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* MySQL 4.0+
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* MySQL 4.1+
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* MySQL 5.0+
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* @package dbal
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*/
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class dbal_mysql extends dbal |
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{
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var $mysql_version; |
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var $multi_insert = true; |
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/**
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* Connect to server
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* @access public
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*/
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function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false, $new_link = false) |
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{
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$this->persistency = $persistency; |
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$this->user = $sqluser; |
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$this->server = $sqlserver . (($port) ? ':' . $port : ''); |
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$this->dbname = $database; |
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$this->sql_layer = 'mysql4'; |
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$this->db_connect_id = ($this->persistency) ? @mysql_pconnect($this->server, $this->user, $sqlpassword, $new_link) : @mysql_connect($this->server, $this->user, $sqlpassword, $new_link); |
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if ($this->db_connect_id && $this->dbname != '') |
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{
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if (@mysql_select_db($this->dbname, $this->db_connect_id)) |
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{
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// Determine what version we are using and if it natively supports UNICODE
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$this->mysql_version = mysql_get_server_info($this->db_connect_id); |
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if (version_compare($this->mysql_version, '4.1.3', '>=')) |
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{
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@mysql_query("SET NAMES 'utf8'", $this->db_connect_id); |
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// enforce strict mode on databases that support it
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if (version_compare($this->mysql_version, '5.0.2', '>=')) |
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{
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$result = @mysql_query('SELECT @@session.sql_mode AS sql_mode', $this->db_connect_id); |
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$row = @mysql_fetch_assoc($result); |
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@mysql_free_result($result); |
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$modes = array_map('trim', explode(',', $row['sql_mode'])); |
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// TRADITIONAL includes STRICT_ALL_TABLES and STRICT_TRANS_TABLES
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if (!in_array('TRADITIONAL', $modes)) |
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{
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if (!in_array('STRICT_ALL_TABLES', $modes)) |
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{
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$modes[] = 'STRICT_ALL_TABLES'; |
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}
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if (!in_array('STRICT_TRANS_TABLES', $modes)) |
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{
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$modes[] = 'STRICT_TRANS_TABLES'; |
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}
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}
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$mode = implode(',', $modes); |
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@mysql_query("SET SESSION sql_mode='{$mode}'", $this->db_connect_id); |
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}
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}
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else if (version_compare($this->mysql_version, '4.0.0', '<')) |
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{
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$this->sql_layer = 'mysql'; |
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}
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return $this->db_connect_id; |
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}
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}
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return $this->sql_error(''); |
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}
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/**
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* Version information about used database
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*/
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function sql_server_info() |
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{
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return 'MySQL ' . $this->mysql_version; |
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}
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/**
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* SQL Transaction
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* @access private
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*/
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function _sql_transaction($status = 'begin') |
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{
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switch ($status) |
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{
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case 'begin': |
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return @mysql_query('BEGIN', $this->db_connect_id); |
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break; |
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case 'commit': |
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return @mysql_query('COMMIT', $this->db_connect_id); |
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break; |
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case 'rollback': |
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return @mysql_query('ROLLBACK', $this->db_connect_id); |
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break; |
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}
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return true; |
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}
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/**
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* Base query method
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*
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* @param string $query Contains the SQL query which shall be executed
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* @param int $cache_ttl Either 0 to avoid caching or the time in seconds which the result shall be kept in cache
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* @return mixed When casted to bool the returned value returns true on success and false on failure
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*
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* @access public
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*/
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function sql_query($query = '', $cache_ttl = 0) |
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{
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if ($query != '') |
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{
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global $cache; |
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// EXPLAIN only in extra debug mode
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if (defined('DEBUG_EXTRA')) |
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{
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$this->sql_report('start', $query); |
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}
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$this->query_result = ($cache_ttl && method_exists($cache, 'sql_load')) ? $cache->sql_load($query) : false; |
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$this->sql_add_num_queries($this->query_result); |
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if ($this->query_result === false) |
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{
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if (($this->query_result = @mysql_query($query, $this->db_connect_id)) === false) |
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{
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$this->sql_error($query); |
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}
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if (defined('DEBUG_EXTRA')) |
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{
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$this->sql_report('stop', $query); |
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}
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if ($cache_ttl && method_exists($cache, 'sql_save')) |
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{
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$this->open_queries[(int) $this->query_result] = $this->query_result; |
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$cache->sql_save($query, $this->query_result, $cache_ttl); |
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}
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else if (strpos($query, 'SELECT') === 0 && $this->query_result) |
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{
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$this->open_queries[(int) $this->query_result] = $this->query_result; |
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}
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}
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else if (defined('DEBUG_EXTRA')) |
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{
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$this->sql_report('fromcache', $query); |
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}
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}
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else
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{
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return false; |
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}
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return ($this->query_result) ? $this->query_result : false; |
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}
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/**
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* Build LIMIT query
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*/
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function _sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0) |
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{
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$this->query_result = false; |
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// if $total is set to 0 we do not want to limit the number of rows
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if ($total == 0) |
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{
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// Having a value of -1 was always a bug
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$total = '18446744073709551615'; |
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}
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$query .= "\n LIMIT " . ((!empty($offset)) ? $offset . ', ' . $total : $total); |
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return $this->sql_query($query, $cache_ttl); |
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}
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/**
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* Return number of affected rows
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*/
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function sql_affectedrows() |
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{
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return ($this->db_connect_id) ? @mysql_affected_rows($this->db_connect_id) : false; |
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}
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/**
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* Fetch current row
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*/
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function sql_fetchrow($query_id = false) |
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{
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global $cache; |
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if ($query_id === false) |
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{
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$query_id = $this->query_result; |
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}
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if (isset($cache->sql_rowset[$query_id])) |
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{
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return $cache->sql_fetchrow($query_id); |
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}
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return ($query_id !== false) ? @mysql_fetch_assoc($query_id) : false; |
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}
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/**
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* Seek to given row number
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* rownum is zero-based
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*/
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function sql_rowseek($rownum, &$query_id) |
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{
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global $cache; |
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if ($query_id === false) |
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{
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$query_id = $this->query_result; |
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}
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if (isset($cache->sql_rowset[$query_id])) |
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{
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return $cache->sql_rowseek($rownum, $query_id); |
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}
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return ($query_id !== false) ? @mysql_data_seek($query_id, $rownum) : false; |
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}
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/**
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* Get last inserted id after insert statement
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*/
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function sql_nextid() |
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{
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return ($this->db_connect_id) ? @mysql_insert_id($this->db_connect_id) : false; |
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}
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/**
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* Free sql result
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*/
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function sql_freeresult($query_id = false) |
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{
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global $cache; |
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if ($query_id === false) |
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{
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$query_id = $this->query_result; |
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}
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if (isset($cache->sql_rowset[$query_id])) |
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{
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return $cache->sql_freeresult($query_id); |
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}
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if (isset($this->open_queries[(int) $query_id])) |
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{
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unset($this->open_queries[(int) $query_id]); |
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return @mysql_free_result($query_id); |
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}
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return false; |
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}
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/**
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* Escape string used in sql query
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*/
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function sql_escape($msg) |
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{
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if (!$this->db_connect_id) |
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{
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return @mysql_real_escape_string($msg); |
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}
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return @mysql_real_escape_string($msg, $this->db_connect_id); |
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}
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/**
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* Build LIKE expression
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* @access private
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*/
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function _sql_like_expression($expression) |
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{
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return $expression; |
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}
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||
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/**
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* Build db-specific query data
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* @access private
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*/
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function _sql_custom_build($stage, $data) |
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{
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switch ($stage) |
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320 |
{
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case 'FROM': |
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$data = '(' . $data . ')'; |
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break; |
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}
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return $data; |
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}
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||
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/**
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* return sql error array
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* @access private
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*/
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function _sql_error() |
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{
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if (!$this->db_connect_id) |
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{
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return array( |
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'message' => @mysql_error(), |
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'code' => @mysql_errno() |
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);
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}
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return array( |
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'message' => @mysql_error($this->db_connect_id), |
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'code' => @mysql_errno($this->db_connect_id) |
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);
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}
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||
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/**
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* Close sql connection
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* @access private
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*/
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function _sql_close() |
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354 |
{
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355 |
return @mysql_close($this->db_connect_id); |
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356 |
}
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||
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/**
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* Build db-specific report
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360 |
* @access private
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361 |
*/
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function _sql_report($mode, $query = '') |
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363 |
{
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static $test_prof; |
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365 |
||
366 |
// current detection method, might just switch to see the existance of INFORMATION_SCHEMA.PROFILING
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if ($test_prof === null) |
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{
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$test_prof = false; |
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370 |
if (strpos($this->mysql_version, 'community') !== false) |
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371 |
{
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372 |
$ver = substr($this->mysql_version, 0, strpos($this->mysql_version, '-')); |
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373 |
if (version_compare($ver, '5.0.37', '>=') && version_compare($ver, '5.1', '<')) |
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{
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$test_prof = true; |
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376 |
}
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377 |
}
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378 |
}
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379 |
||
380 |
switch ($mode) |
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381 |
{
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382 |
case 'start': |
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383 |
||
384 |
$explain_query = $query; |
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385 |
if (preg_match('/UPDATE ([a-z0-9_]+).*?WHERE(.*)/s', $query, $m)) |
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386 |
{
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387 |
$explain_query = 'SELECT * FROM ' . $m[1] . ' WHERE ' . $m[2]; |
|
388 |
}
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389 |
else if (preg_match('/DELETE FROM ([a-z0-9_]+).*?WHERE(.*)/s', $query, $m)) |
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390 |
{
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391 |
$explain_query = 'SELECT * FROM ' . $m[1] . ' WHERE ' . $m[2]; |
|
392 |
}
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393 |
||
394 |
if (preg_match('/^SELECT/', $explain_query)) |
|
395 |
{
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396 |
$html_table = false; |
|
397 |
||
398 |
// begin profiling
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|
399 |
if ($test_prof) |
|
400 |
{
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|
401 |
@mysql_query('SET profiling = 1;', $this->db_connect_id); |
|
402 |
}
|
|
403 |
||
404 |
if ($result = @mysql_query("EXPLAIN $explain_query", $this->db_connect_id)) |
|
405 |
{
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|
406 |
while ($row = @mysql_fetch_assoc($result)) |
|
407 |
{
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|
408 |
$html_table = $this->sql_report('add_select_row', $query, $html_table, $row); |
|
409 |
}
|
|
410 |
}
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|
411 |
@mysql_free_result($result); |
|
412 |
||
413 |
if ($html_table) |
|
414 |
{
|
|
415 |
$this->html_hold .= '</table>'; |
|
416 |
}
|
|
417 |
||
418 |
if ($test_prof) |
|
419 |
{
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|
420 |
$html_table = false; |
|
421 |
||
422 |
// get the last profile
|
|
423 |
if ($result = @mysql_query('SHOW PROFILE ALL;', $this->db_connect_id)) |
|
424 |
{
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|
425 |
$this->html_hold .= '<br />'; |
|
426 |
while ($row = @mysql_fetch_assoc($result)) |
|
427 |
{
|
|
428 |
// make <unknown> HTML safe
|
|
429 |
if (!empty($row['Source_function'])) |
|
430 |
{
|
|
431 |
$row['Source_function'] = str_replace(array('<', '>'), array('<', '>'), $row['Source_function']); |
|
432 |
}
|
|
433 |
||
434 |
// remove unsupported features
|
|
435 |
foreach ($row as $key => $val) |
|
436 |
{
|
|
437 |
if ($val === null) |
|
438 |
{
|
|
439 |
unset($row[$key]); |
|
440 |
}
|
|
441 |
}
|
|
442 |
$html_table = $this->sql_report('add_select_row', $query, $html_table, $row); |
|
443 |
}
|
|
444 |
}
|
|
445 |
@mysql_free_result($result); |
|
446 |
||
447 |
if ($html_table) |
|
448 |
{
|
|
449 |
$this->html_hold .= '</table>'; |
|
450 |
}
|
|
451 |
||
452 |
@mysql_query('SET profiling = 0;', $this->db_connect_id); |
|
453 |
}
|
|
454 |
}
|
|
455 |
||
456 |
break; |
|
457 |
||
458 |
case 'fromcache': |
|
459 |
$endtime = explode(' ', microtime()); |
|
460 |
$endtime = $endtime[0] + $endtime[1]; |
|
461 |
||
462 |
$result = @mysql_query($query, $this->db_connect_id); |
|
463 |
while ($void = @mysql_fetch_assoc($result)) |
|
464 |
{
|
|
465 |
// Take the time spent on parsing rows into account
|
|
466 |
}
|
|
467 |
@mysql_free_result($result); |
|
468 |
||
469 |
$splittime = explode(' ', microtime()); |
|
470 |
$splittime = $splittime[0] + $splittime[1]; |
|
471 |
||
472 |
$this->sql_report('record_fromcache', $query, $endtime, $splittime); |
|
473 |
||
474 |
break; |
|
475 |
}
|
|
476 |
}
|
|
477 |
}
|
|
478 |
||
479 |
?>
|