+<?php

+/**

+*

+* @package dbal

+* @copyright (c) 2005 phpBB Group

+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2

+*

+*/

+

+/**

+* @ignore

+*/

+if (!defined('IN_PHPBB'))

+{

+ exit;

+}

+

+/**

+* Database Abstraction Layer

+* @package dbal

+*/

+class phpbb_db_driver

+{

+ var $db_connect_id;

+ var $query_result;

+ var $return_on_error = false;

+ var $transaction = false;

+ var $sql_time = 0;

+ var $num_queries = array();

+ var $open_queries = array();

+

+ var $curtime = 0;

+ var $query_hold = '';

+ var $html_hold = '';

+ var $sql_report = '';

+

+ var $persistency = false;

+ var $user = '';

+ var $server = '';

+ var $dbname = '';

+

+ // Set to true if error triggered

+ var $sql_error_triggered = false;

+

+ // Holding the last sql query on sql error

+ var $sql_error_sql = '';

+ // Holding the error information - only populated if sql_error_triggered is set

+ var $sql_error_returned = array();

+

+ // Holding transaction count

+ var $transactions = 0;

+

+ // Supports multi inserts?

+ var $multi_insert = false;

+

+ /**

+ * Current sql layer

+ */

+ var $sql_layer = '';

+

+ /**

+ * Wildcards for matching any (%) or exactly one (_) character within LIKE expressions

+ */

+ var $any_char;

+ var $one_char;

+

+ /**

+ * Exact version of the DBAL, directly queried

+ */

+ var $sql_server_version = false;

+

+ /**

+ * Constructor

+ */

+ function __construct()

+ {

+ $this->num_queries = array(

+ 'cached' => 0,

+ 'normal' => 0,

+ 'total' => 0,

+ );

+

+ // Fill default sql layer based on the class being called.

+ // This can be changed by the specified layer itself later if needed.

+ $this->sql_layer = substr(get_class($this), 5);

+

+ // Do not change this please! This variable is used to easy the use of it - and is hardcoded.

+ $this->any_char = chr(0) . '%';

+ $this->one_char = chr(0) . '_';

+ }

+

+ /**

+ * return on error or display error message

+ */

+ function sql_return_on_error($fail = false)

+ {

+ $this->sql_error_triggered = false;

+ $this->sql_error_sql = '';

+

+ $this->return_on_error = $fail;

+ }

+

+ /**

+ * Return number of sql queries and cached sql queries used

+ */

+ function sql_num_queries($cached = false)

+ {

+ return ($cached) ? $this->num_queries['cached'] : $this->num_queries['normal'];

+ }

+

+ /**

+ * Add to query count

+ */

+ function sql_add_num_queries($cached = false)

+ {

+ $this->num_queries['cached'] += ($cached !== false) ? 1 : 0;

+ $this->num_queries['normal'] += ($cached !== false) ? 0 : 1;

+ $this->num_queries['total'] += 1;

+ }

+

+ /**

+ * DBAL garbage collection, close sql connection

+ */

+ function sql_close()

+ {

+ if (!$this->db_connect_id)

+ {

+ return false;

+ }

+

+ if ($this->transaction)

+ {

+ do

+ {

+ $this->sql_transaction('commit');

+ }

+ while ($this->transaction);

+ }

+

+ foreach ($this->open_queries as $query_id)

+ {

+ $this->sql_freeresult($query_id);

+ }

+

+ // Connection closed correctly. Set db_connect_id to false to prevent errors

+ if ($result = $this->_sql_close())

+ {

+ $this->db_connect_id = false;

+ }

+

+ return $result;

+ }

+

+ /**

+ * Build LIMIT query

+ * Doing some validation here.

+ */

+ function sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0)

+ {

+ if (empty($query))

+ {

+ return false;

+ }

+

+ // Never use a negative total or offset

+ $total = ($total < 0) ? 0 : $total;

+ $offset = ($offset < 0) ? 0 : $offset;

+

+ return $this->_sql_query_limit($query, $total, $offset, $cache_ttl);

+ }

+

+ /**

+ * Fetch all rows

+ */

+ function sql_fetchrowset($query_id = false)

+ {

+ if ($query_id === false)

+ {

+ $query_id = $this->query_result;

+ }

+

+ if ($query_id !== false)

+ {

+ $result = array();

+ while ($row = $this->sql_fetchrow($query_id))

+ {

+ $result[] = $row;

+ }

+

+ return $result;

+ }

+

+ return false;

+ }

+

+ /**

+ * Seek to given row number

+ * rownum is zero-based

+ */

+ function sql_rowseek($rownum, &$query_id)

+ {

+ global $cache;

+

+ if ($query_id === false)

+ {

+ $query_id = $this->query_result;

+ }

+

+ if (isset($cache->sql_rowset[$query_id]))

+ {

+ return $cache->sql_rowseek($rownum, $query_id);

+ }

+

+ if ($query_id === false)

+ {

+ return false;

+ }

+

+ $this->sql_freeresult($query_id);

+ $query_id = $this->sql_query($this->last_query_text);

+

+ if ($query_id === false)

+ {

+ return false;

+ }

+

+ // We do not fetch the row for rownum == 0 because then the next resultset would be the second row

+ for ($i = 0; $i < $rownum; $i++)

+ {

+ if (!$this->sql_fetchrow($query_id))

+ {

+ return false;

+ }

+ }

+

+ return true;

+ }

+

+ /**

+ * Fetch field

+ * if rownum is false, the current row is used, else it is pointing to the row (zero-based)

+ */

+ function sql_fetchfield($field, $rownum = false, $query_id = false)

+ {

+ global $cache;

+

+ if ($query_id === false)

+ {

+ $query_id = $this->query_result;

+ }

+

+ if ($query_id !== false)

+ {

+ if ($rownum !== false)

+ {

+ $this->sql_rowseek($rownum, $query_id);

+ }

+

+ if (!is_object($query_id) && isset($cache->sql_rowset[$query_id]))

+ {

+ return $cache->sql_fetchfield($query_id, $field);

+ }

+

+ $row = $this->sql_fetchrow($query_id);

+ return (isset($row[$field])) ? $row[$field] : false;

+ }

+

+ return false;

+ }

+

+ /**

+ * Correctly adjust LIKE expression for special characters

+ * Some DBMS are handling them in a different way

+ *

+ * @param string $expression The expression to use. Every wildcard is escaped, except $this->any_char and $this->one_char

+ * @return string LIKE expression including the keyword!

+ */

+ function sql_like_expression($expression)

+ {

+ $expression = utf8_str_replace(array('_', '%'), array("\_", "\%"), $expression);

+ $expression = utf8_str_replace(array(chr(0) . "\_", chr(0) . "\%"), array('_', '%'), $expression);

+

+ return $this->_sql_like_expression('LIKE \'' . $this->sql_escape($expression) . '\'');

+ }

+

+ /**

+ * Build a case expression

+ *

+ * Note: The two statements action_true and action_false must have the same data type (int, vchar, ...) in the database!

+ *

+ * @param string $condition The condition which must be true, to use action_true rather then action_else

+ * @param string $action_true SQL expression that is used, if the condition is true

+ * @param string $action_else SQL expression that is used, if the condition is false, optional

+ * @return string CASE expression including the condition and statements

+ */

+ public function sql_case($condition, $action_true, $action_false = false)

+ {

+ $sql_case = 'CASE WHEN ' . $condition;

+ $sql_case .= ' THEN ' . $action_true;

+ $sql_case .= ($action_false !== false) ? ' ELSE ' . $action_false : '';

+ $sql_case .= ' END';

+ return $sql_case;

+ }

+

+ /**

+ * Build a concatenated expression

+ *

+ * @param string $expr1 Base SQL expression where we append the second one

+ * @param string $expr2 SQL expression that is appended to the first expression

+ * @return string Concatenated string

+ */

+ public function sql_concatenate($expr1, $expr2)

+ {

+ return $expr1 . ' || ' . $expr2;

+ }

+

+ /**

+ * Returns whether results of a query need to be buffered to run a transaction while iterating over them.

+ *

+ * @return bool Whether buffering is required.

+ */

+ function sql_buffer_nested_transactions()

+ {

+ return false;

+ }

+

+ /**

+ * SQL Transaction

+ * @access private

+ */

+ function sql_transaction($status = 'begin')

+ {

+ switch ($status)

+ {

+ case 'begin':

+ // If we are within a transaction we will not open another one, but enclose the current one to not loose data (prevening auto commit)

+ if ($this->transaction)

+ {

+ $this->transactions++;

+ return true;

+ }

+

+ $result = $this->_sql_transaction('begin');

+

+ if (!$result)

+ {

+ $this->sql_error();

+ }

+

+ $this->transaction = true;

+ break;

+

+ case 'commit':

+ // If there was a previously opened transaction we do not commit yet... but count back the number of inner transactions

+ if ($this->transaction && $this->transactions)

+ {

+ $this->transactions--;

+ return true;

+ }

+

+ // Check if there is a transaction (no transaction can happen if there was an error, with a combined rollback and error returning enabled)

+ // This implies we have transaction always set for autocommit db's

+ if (!$this->transaction)

+ {

+ return false;

+ }

+

+ $result = $this->_sql_transaction('commit');

+

+ if (!$result)

+ {

+ $this->sql_error();

+ }

+

+ $this->transaction = false;

+ $this->transactions = 0;

+ break;

+

+ case 'rollback':

+ $result = $this->_sql_transaction('rollback');

+ $this->transaction = false;

+ $this->transactions = 0;

+ break;

+

+ default:

+ $result = $this->_sql_transaction($status);

+ break;

+ }

+

+ return $result;

+ }

+

+ /**

+ * Build sql statement from array for insert/update/select statements

+ *

+ * Idea for this from Ikonboard

+ * Possible query values: INSERT, INSERT_SELECT, UPDATE, SELECT

+ *

+ */

+ function sql_build_array($query, $assoc_ary = false)

+ {

+ if (!is_array($assoc_ary))

+ {

+ return false;

+ }

+

+ $fields = $values = array();

+

+ if ($query == 'INSERT' || $query == 'INSERT_SELECT')

+ {

+ foreach ($assoc_ary as $key => $var)

+ {

+ $fields[] = $key;

+

+ if (is_array($var) && is_string($var[0]))

+ {

+ // This is used for INSERT_SELECT(s)

+ $values[] = $var[0];

+ }

+ else

+ {

+ $values[] = $this->_sql_validate_value($var);

+ }

+ }

+

+ $query = ($query == 'INSERT') ? ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')' : ' (' . implode(', ', $fields) . ') SELECT ' . implode(', ', $values) . ' ';

+ }

+ else if ($query == 'MULTI_INSERT')

+ {

+ trigger_error('The MULTI_INSERT query value is no longer supported. Please use sql_multi_insert() instead.', E_USER_ERROR);

+ }

+ else if ($query == 'UPDATE' || $query == 'SELECT')

+ {

+ $values = array();

+ foreach ($assoc_ary as $key => $var)

+ {

+ $values[] = "$key = " . $this->_sql_validate_value($var);

+ }

+ $query = implode(($query == 'UPDATE') ? ', ' : ' AND ', $values);

+ }

+

+ return $query;

+ }

+

+ /**

+ * Build IN or NOT IN sql comparison string, uses <> or = on single element

+ * arrays to improve comparison speed

+ *

+ * @access public

+ * @param string $field name of the sql column that shall be compared

+ * @param array $array array of values that are allowed (IN) or not allowed (NOT IN)

+ * @param bool $negate true for NOT IN (), false for IN () (default)

+ * @param bool $allow_empty_set If true, allow $array to be empty, this function will return 1=1 or 1=0 then. Default to false.

+ */

+ function sql_in_set($field, $array, $negate = false, $allow_empty_set = false)

+ {

+ if (!sizeof($array))

+ {

+ if (!$allow_empty_set)

+ {

+ // Print the backtrace to help identifying the location of the problematic code

+ $this->sql_error('No values specified for SQL IN comparison');

+ }

+ else

+ {

+ // NOT IN () actually means everything so use a tautology

+ if ($negate)

+ {

+ return '1=1';

+ }

+ // IN () actually means nothing so use a contradiction

+ else

+ {

+ return '1=0';

+ }

+ }

+ }

+

+ if (!is_array($array))

+ {

+ $array = array($array);

+ }

+

+ if (sizeof($array) == 1)

+ {

+ @reset($array);

+ $var = current($array);

+

+ return $field . ($negate ? ' <> ' : ' = ') . $this->_sql_validate_value($var);

+ }

+ else

+ {

+ return $field . ($negate ? ' NOT IN ' : ' IN ') . '(' . implode(', ', array_map(array($this, '_sql_validate_value'), $array)) . ')';

+ }

+ }

+

+ /**

+ * Run binary AND operator on DB column.

+ * Results in sql statement: "{$column_name} & (1 << {$bit}) {$compare}"

+ *

+ * @param string $column_name The column name to use

+ * @param int $bit The value to use for the AND operator, will be converted to (1 << $bit). Is used by options, using the number schema... 0, 1, 2...29

+ * @param string $compare Any custom SQL code after the check (for example "= 0")

+ */

+ function sql_bit_and($column_name, $bit, $compare = '')

+ {

+ if (method_exists($this, '_sql_bit_and'))

+ {

+ return $this->_sql_bit_and($column_name, $bit, $compare);

+ }

+

+ return $column_name . ' & ' . (1 << $bit) . (($compare) ? ' ' . $compare : '');

+ }

+

+ /**

+ * Run binary OR operator on DB column.

+ * Results in sql statement: "{$column_name} | (1 << {$bit}) {$compare}"

+ *

+ * @param string $column_name The column name to use

+ * @param int $bit The value to use for the OR operator, will be converted to (1 << $bit). Is used by options, using the number schema... 0, 1, 2...29

+ * @param string $compare Any custom SQL code after the check (for example "= 0")

+ */

+ function sql_bit_or($column_name, $bit, $compare = '')

+ {

+ if (method_exists($this, '_sql_bit_or'))

+ {

+ return $this->_sql_bit_or($column_name, $bit, $compare);

+ }

+

+ return $column_name . ' | ' . (1 << $bit) . (($compare) ? ' ' . $compare : '');

+ }

+

+ /**

+ * Returns SQL string to cast a string expression to an int.

+ *

+ * @param string $expression An expression evaluating to string

+ * @return string Expression returning an int

+ */

+ function cast_expr_to_bigint($expression)

+ {

+ return $expression;

+ }

+

+ /**

+ * Returns SQL string to cast an integer expression to a string.

+ *

+ * @param string $expression An expression evaluating to int

+ * @return string Expression returning a string

+ */

+ function cast_expr_to_string($expression)

+ {

+ return $expression;

+ }

+

+ /**

+ * Run LOWER() on DB column of type text (i.e. neither varchar nor char).

+ *

+ * @param string $column_name The column name to use

+ *

+ * @return string A SQL statement like "LOWER($column_name)"

+ */

+ function sql_lower_text($column_name)

+ {

+ return "LOWER($column_name)";

+ }

+

+ /**

+ * Run more than one insert statement.

+ *

+ * @param string $table table name to run the statements on

+ * @param array &$sql_ary multi-dimensional array holding the statement data.

+ *

+ * @return bool false if no statements were executed.

+ * @access public

+ */

+ function sql_multi_insert($table, &$sql_ary)

+ {

+ if (!sizeof($sql_ary))

+ {

+ return false;

+ }

+

+ if ($this->multi_insert)

+ {

+ $ary = array();

+ foreach ($sql_ary as $id => $_sql_ary)

+ {

+ // If by accident the sql array is only one-dimensional we build a normal insert statement

+ if (!is_array($_sql_ary))

+ {

+ return $this->sql_query('INSERT INTO ' . $table . ' ' . $this->sql_build_array('INSERT', $sql_ary));

+ }

+

+ $values = array();

+ foreach ($_sql_ary as $key => $var)

+ {

+ $values[] = $this->_sql_validate_value($var);

+ }

+ $ary[] = '(' . implode(', ', $values) . ')';

+ }

+

+ return $this->sql_query('INSERT INTO ' . $table . ' ' . ' (' . implode(', ', array_keys($sql_ary[0])) . ') VALUES ' . implode(', ', $ary));

+ }

+ else

+ {

+ foreach ($sql_ary as $ary)

+ {

+ if (!is_array($ary))

+ {

+ return false;

+ }

+

+ $result = $this->sql_query('INSERT INTO ' . $table . ' ' . $this->sql_build_array('INSERT', $ary));

+

+ if (!$result)

+ {

+ return false;

+ }

+ }

+ }

+

+ return true;

+ }

+

+ /**

+ * Function for validating values

+ * @access private

+ */

+ function _sql_validate_value($var)

+ {

+ if (is_null($var))

+ {

+ return 'NULL';

+ }

+ else if (is_string($var))

+ {

+ return "'" . $this->sql_escape($var) . "'";

+ }

+ else

+ {

+ return (is_bool($var)) ? intval($var) : $var;

+ }

+ }

+

+ /**

+ * Build sql statement from array for select and select distinct statements

+ *

+ * Possible query values: SELECT, SELECT_DISTINCT

+ */

+ function sql_build_query($query, $array)

+ {

+ $sql = '';

+ switch ($query)

+ {

+ case 'SELECT':

+ case 'SELECT_DISTINCT';

+

+ $sql = str_replace('_', ' ', $query) . ' ' . $array['SELECT'] . ' FROM ';

+

+ // Build table array. We also build an alias array for later checks.

+ $table_array = $aliases = array();

+ $used_multi_alias = false;

+

+ foreach ($array['FROM'] as $table_name => $alias)

+ {

+ if (is_array($alias))

+ {

+ $used_multi_alias = true;

+

+ foreach ($alias as $multi_alias)

+ {

+ $table_array[] = $table_name . ' ' . $multi_alias;

+ $aliases[] = $multi_alias;

+ }

+ }

+ else

+ {

+ $table_array[] = $table_name . ' ' . $alias;

+ $aliases[] = $alias;

+ }

+ }

+

+ // We run the following code to determine if we need to re-order the table array. ;)

+ // The reason for this is that for multi-aliased tables (two equal tables) in the FROM statement the last table need to match the first comparison.

+ // DBMS who rely on this: Oracle, PostgreSQL and MSSQL. For all other DBMS it makes absolutely no difference in which order the table is.

+ if (!empty($array['LEFT_JOIN']) && sizeof($array['FROM']) > 1 && $used_multi_alias !== false)

+ {

+ // Take first LEFT JOIN

+ $join = current($array['LEFT_JOIN']);

+

+ // Determine the table used there (even if there are more than one used, we only want to have one

+ preg_match('/(' . implode('|', $aliases) . ')\.[^\s]+/U', str_replace(array('(', ')', 'AND', 'OR', ' '), '', $join['ON']), $matches);

+

+ // If there is a first join match, we need to make sure the table order is correct

+ if (!empty($matches[1]))

+ {

+ $first_join_match = trim($matches[1]);

+ $table_array = $last = array();

+

+ foreach ($array['FROM'] as $table_name => $alias)

+ {

+ if (is_array($alias))

+ {

+ foreach ($alias as $multi_alias)

+ {

+ ($multi_alias === $first_join_match) ? $last[] = $table_name . ' ' . $multi_alias : $table_array[] = $table_name . ' ' . $multi_alias;

+ }

+ }

+ else

+ {

+ ($alias === $first_join_match) ? $last[] = $table_name . ' ' . $alias : $table_array[] = $table_name . ' ' . $alias;

+ }

+ }

+

+ $table_array = array_merge($table_array, $last);

+ }

+ }

+

+ $sql .= $this->_sql_custom_build('FROM', implode(' CROSS JOIN ', $table_array));

+

+ if (!empty($array['LEFT_JOIN']))

+ {

+ foreach ($array['LEFT_JOIN'] as $join)

+ {

+ $sql .= ' LEFT JOIN ' . key($join['FROM']) . ' ' . current($join['FROM']) . ' ON (' . $join['ON'] . ')';

+ }

+ }

+

+ if (!empty($array['WHERE']))

+ {

+ $sql .= ' WHERE ' . $this->_sql_custom_build('WHERE', $array['WHERE']);

+ }

+

+ if (!empty($array['GROUP_BY']))

+ {

+ $sql .= ' GROUP BY ' . $array['GROUP_BY'];

+ }

+

+ if (!empty($array['ORDER_BY']))

+ {

+ $sql .= ' ORDER BY ' . $array['ORDER_BY'];

+ }

+

+ break;

+ }

+

+ return $sql;

+ }

+

+ /**

+ * display sql error page

+ */

+ function sql_error($sql = '')

+ {

+ global $auth, $user, $config;

+

+ // Set var to retrieve errored status

+ $this->sql_error_triggered = true;

+ $this->sql_error_sql = $sql;

+

+ $this->sql_error_returned = $this->_sql_error();

+

+ if (!$this->return_on_error)

+ {

+ $message = 'SQL ERROR [ ' . $this->sql_layer . ' ]<br /><br />' . $this->sql_error_returned['message'] . ' [' . $this->sql_error_returned['code'] . ']';

+

+ // Show complete SQL error and path to administrators only

+ // Additionally show complete error on installation or if extended debug mode is enabled

+ // The DEBUG_EXTRA constant is for development only!

+ if ((isset($auth) && $auth->acl_get('a_')) || defined('IN_INSTALL') || defined('DEBUG_EXTRA'))

+ {

+ $message .= ($sql) ? '<br /><br />SQL<br /><br />' . htmlspecialchars($sql) : '';

+ }

+ else

+ {

+ // If error occurs in initiating the session we need to use a pre-defined language string

+ // This could happen if the connection could not be established for example (then we are not able to grab the default language)

+ if (!isset($user->lang['SQL_ERROR_OCCURRED']))

+ {

+ $message .= '<br /><br />An sql error occurred while fetching this page. Please contact an administrator if this problem persists.';

+ }

+ else

+ {

+ if (!empty($config['board_contact']))

+ {

+ $message .= '<br /><br />' . sprintf($user->lang['SQL_ERROR_OCCURRED'], '<a href="mailto:' . htmlspecialchars($config['board_contact']) . '">', '</a>');

+ }

+ else

+ {

+ $message .= '<br /><br />' . sprintf($user->lang['SQL_ERROR_OCCURRED'], '', '');

+ }

+ }

+ }

+

+ if ($this->transaction)

+ {

+ $this->sql_transaction('rollback');

+ }

+

+ if (strlen($message) > 1024)

+ {

+ // We need to define $msg_long_text here to circumvent text stripping.

+ global $msg_long_text;

+ $msg_long_text = $message;

+

+ trigger_error(false, E_USER_ERROR);

+ }

+

+ trigger_error($message, E_USER_ERROR);

+ }

+

+ if ($this->transaction)

+ {

+ $this->sql_transaction('rollback');

+ }

+

+ return $this->sql_error_returned;

+ }

+

+ /**

+ * Explain queries

+ */

+ function sql_report($mode, $query = '')

+ {

+ global $cache, $starttime, $phpbb_root_path, $user;

+ global $request;

+

+ if (is_object($request) && !$request->variable('explain', false))

+ {

+ return false;

+ }

+

+ if (!$query && $this->query_hold != '')

+ {

+ $query = $this->query_hold;

+ }

+

+ switch ($mode)

+ {

+ case 'display':

+ if (!empty($cache))

+ {

+ $cache->unload();

+ }

+ $this->sql_close();

+

+ $mtime = explode(' ', microtime());

+ $totaltime = $mtime[0] + $mtime[1] - $starttime;

+

+ echo '<!DOCTYPE html>

+ <html dir="ltr">

+ <head>

+ <meta charset="utf-8">

+ <title>SQL Report</title>

+ <link href="' . $phpbb_root_path . 'adm/style/admin.css" rel="stylesheet" type="text/css" media="screen" />

+ </head>

+ <body id="errorpage">

+ <div id="wrap">

+ <div id="page-header">

+ <a href="' . build_url('explain') . '">Return to previous page</a>

+ </div>

+ <div id="page-body">

+ <div id="acp">

+ <div class="panel">

+ <span class="corners-top"><span></span></span>

+ <div id="content">

+ <h1>SQL Report</h1>

+ <br />

+ <p><b>Page generated in ' . round($totaltime, 4) . " seconds with {$this->num_queries['normal']} queries" . (($this->num_queries['cached']) ? " + {$this->num_queries['cached']} " . (($this->num_queries['cached'] == 1) ? 'query' : 'queries') . ' returning data from cache' : '') . '</b></p>

+

+ <p>Time spent on ' . $this->sql_layer . ' queries: <b>' . round($this->sql_time, 5) . 's</b> | Time spent on PHP: <b>' . round($totaltime - $this->sql_time, 5) . 's</b></p>

+

+ <br /><br />

+ ' . $this->sql_report . '

+ </div>

+ <span class="corners-bottom"><span></span></span>

+ </div>

+ </div>

+ </div>

+ <div id="page-footer">

+ Powered by <a href="http://www.phpbb.com/">phpBB</a>&reg; Forum Software &copy; phpBB Group

+ </div>

+ </div>

+ </body>

+ </html>';

+

+ exit_handler();

+

+ break;

+

+ case 'stop':

+ $endtime = explode(' ', microtime());

+ $endtime = $endtime[0] + $endtime[1];

+

+ $this->sql_report .= '

+

+ <table cellspacing="1">

+ <thead>

+ <tr>

+ <th>Query #' . $this->num_queries['total'] . '</th>

+ </tr>

+ </thead>

+ <tbody>

+ <tr>

+ <td class="row3"><textarea style="font-family:\'Courier New\',monospace;width:99%" rows="5" cols="10">' . preg_replace('/\t(AND|OR)(\W)/', "\$1\$2", htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n", $query))) . '</textarea></td>

+ </tr>

+ </tbody>

+ </table>

+

+ ' . $this->html_hold . '

+

+ <p style="text-align: center;">

+ ';

+

+ if ($this->query_result)

+ {

+ if (preg_match('/^(UPDATE|DELETE|REPLACE)/', $query))

+ {

+ $this->sql_report .= 'Affected rows: <b>' . $this->sql_affectedrows($this->query_result) . '</b> | ';

+ }

+ $this->sql_report .= 'Before: ' . sprintf('%.5f', $this->curtime - $starttime) . 's | After: ' . sprintf('%.5f', $endtime - $starttime) . 's | Elapsed: <b>' . sprintf('%.5f', $endtime - $this->curtime) . 's</b>';

+ }

+ else

+ {

+ $error = $this->sql_error();

+ $this->sql_report .= '<b style="color: red">FAILED</b> - ' . $this->sql_layer . ' Error ' . $error['code'] . ': ' . htmlspecialchars($error['message']);

+ }

+

+ $this->sql_report .= '</p><br /><br />';

+

+ $this->sql_time += $endtime - $this->curtime;

+ break;

+

+ case 'start':

+ $this->query_hold = $query;

+ $this->html_hold = '';

+

+ $this->_sql_report($mode, $query);

+

+ $this->curtime = explode(' ', microtime());

+ $this->curtime = $this->curtime[0] + $this->curtime[1];

+

+ break;

+

+ case 'add_select_row':

+

+ $html_table = func_get_arg(2);

+ $row = func_get_arg(3);

+

+ if (!$html_table && sizeof($row))

+ {

+ $html_table = true;

+ $this->html_hold .= '<table cellspacing="1"><tr>';

+

+ foreach (array_keys($row) as $val)

+ {

+ $this->html_hold .= '<th>' . (($val) ? ucwords(str_replace('_', ' ', $val)) : '&nbsp;') . '</th>';

+ }

+ $this->html_hold .= '</tr>';

+ }

+ $this->html_hold .= '<tr>';

+

+ $class = 'row1';

+ foreach (array_values($row) as $val)

+ {

+ $class = ($class == 'row1') ? 'row2' : 'row1';

+ $this->html_hold .= '<td class="' . $class . '">' . (($val) ? $val : '&nbsp;') . '</td>';

+ }

+ $this->html_hold .= '</tr>';

+

+ return $html_table;

+

+ break;

+

+ case 'fromcache':

+

+ $this->_sql_report($mode, $query);

+

+ break;

+

+ case 'record_fromcache':

+

+ $endtime = func_get_arg(2);

+ $splittime = func_get_arg(3);

+

+ $time_cache = $endtime - $this->curtime;

+ $time_db = $splittime - $endtime;

+ $color = ($time_db > $time_cache) ? 'green' : 'red';

+

+ $this->sql_report .= '<table cellspacing="1"><thead><tr><th>Query results obtained from the cache</th></tr></thead><tbody><tr>';

+ $this->sql_report .= '<td class="row3"><textarea style="font-family:\'Courier New\',monospace;width:99%" rows="5" cols="10">' . preg_replace('/\t(AND|OR)(\W)/', "\$1\$2", htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n", $query))) . '</textarea></td></tr></tbody></table>';

+ $this->sql_report .= '<p style="text-align: center;">';

+ $this->sql_report .= 'Before: ' . sprintf('%.5f', $this->curtime - $starttime) . 's | After: ' . sprintf('%.5f', $endtime - $starttime) . 's | Elapsed [cache]: <b style="color: ' . $color . '">' . sprintf('%.5f', ($time_cache)) . 's</b> | Elapsed [db]: <b>' . sprintf('%.5f', $time_db) . 's</b></p><br /><br />';

+

+ // Pad the start time to not interfere with page timing

+ $starttime += $time_db;

+

+ break;

+

+ default:

+

+ $this->_sql_report($mode, $query);

+

+ break;

+ }

+

+ return true;

+ }

+

+ /**

+ * Gets the estimated number of rows in a specified table.

+ *

+ * @param string $table_name Table name

+ *

+ * @return string Number of rows in $table_name.

+ * Prefixed with ~ if estimated (otherwise exact).

+ *

+ * @access public

+ */

+ function get_estimated_row_count($table_name)

+ {

+ return $this->get_row_count($table_name);

+ }

+

+ /**

+ * Gets the exact number of rows in a specified table.

+ *

+ * @param string $table_name Table name

+ *

+ * @return string Exact number of rows in $table_name.

+ *

+ * @access public

+ */

+ function get_row_count($table_name)

+ {

+ $sql = 'SELECT COUNT(*) AS rows_total

+ FROM ' . $this->sql_escape($table_name);

+ $result = $this->sql_query($sql);

+ $rows_total = $this->sql_fetchfield('rows_total');

+ $this->sql_freeresult($result);

+

+ return $rows_total;

+ }

+}