<?php /** * * @package dbal_mssql * @version $Id: mssql.php,v 1.2 2005/06/10 08:52:03 devalley Exp $ * @copyright (c) 2005 phpBB Group * @license http://opensource.org/licenses/gpl-license.php GNU Public License * */ /** * @ignore */ if (!defined('SQL_LAYER')) { define('SQL_LAYER', 'mssql'); /** * @package dbal_mssql * MSSQL Database Abstraction Layer * Minimum Requirement is MSSQL 2000+ */ class sql_db { var $db_connect_id; var $query_result; var $return_on_error = false; var $transaction = false; var $sql_time = 0; var $num_queries = 0; var $open_queries = array(); function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false) { $this->persistency = $persistency; $this->user = $sqluser; $this->server = $sqlserver . (($port) ? ':' . $port : ''); $this->dbname = $database; $this->db_connect_id = ($this->persistency) ? @mssql_pconnect($this->server, $this->user, $sqlpassword) : @mssql_connect($this->server, $this->user, $sqlpassword); if ($this->db_connect_id && $this->dbname != '') { if (!@mssql_select_db($this->dbname, $this->db_connect_id)) { @mssql_close($this->db_connect_id); return false; } } return ($this->db_connect_id) ? $this->db_connect_id : $this->sql_error(''); } function sql_close() { if (!$this->db_connect_id) { return false; } if ($this->transaction) { @mssql_query('COMMIT', $this->db_connect_id); } if (sizeof($this->open_queries)) { foreach ($this->open_queries as $i_query_id => $query_id) { @mssql_free_result($query_id); } } return @mssql_close($this->db_connect_id); } function sql_return_on_error($fail = false) { $this->return_on_error = $fail; } function sql_num_queries() { return $this->num_queries; } function sql_transaction($status = 'begin') { switch ($status) { case 'begin': $result = @mssql_query('BEGIN TRANSACTION', $this->db_connect_id); $this->transaction = true; break; case 'commit': $result = @mssql_query('commit', $this->db_connect_id); $this->transaction = false; if (!$result) { @mssql_query('ROLLBACK', $this->db_connect_id); } break; case 'rollback': $result = @mssql_query('ROLLBACK', $this->db_connect_id); $this->transaction = false; break; default: $result = true; } return $result; } // Base query method function sql_query($query = '', $cache_ttl = 0) { if ($query != '') { global $cache; // EXPLAIN only in extra debug mode if (defined('DEBUG_EXTRA')) { $this->sql_report('start', $query); } $this->query_result = ($cache_ttl && method_exists($cache, 'sql_load')) ? $cache->sql_load($query) : false; if (!$this->query_result) { $this->num_queries++; if (($this->query_result = @mssql_query($query, $this->db_connect_id)) === false) { $this->sql_error($query); } if (defined('DEBUG_EXTRA')) { $this->sql_report('stop', $query); } if ($cache_ttl && method_exists($cache, 'sql_save')) { $this->open_queries[(int) $this->query_result] = $this->query_result; $cache->sql_save($query, $this->query_result, $cache_ttl); // sql_freeresult called within sql_save() } else if (strpos($query, 'SELECT') !== false && $this->query_result) { $this->open_queries[(int) $this->query_result] = $this->query_result; } } else if (defined('DEBUG_EXTRA')) { $this->sql_report('fromcache', $query); } } else { return false; } return ($this->query_result) ? $this->query_result : false; } function sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0) { if ($query != '') { $this->query_result = false; // if $total is set to 0 we do not want to limit the number of rows if ($total == 0) { $total = -1; } $row_offset = ($total) ? $offset : ''; $num_rows = ($total) ? $total : $offset; $query = 'SELECT TOP ' . ($row_offset + $num_rows) . ' ' . substr($query, 6); return $this->sql_query($query, $cache_ttl); } else { return false; } } // Idea for this from Ikonboard function sql_build_array($query, $assoc_ary = false) { if (!is_array($assoc_ary)) { return false; } $fields = array(); $values = array(); if ($query == 'INSERT') { foreach ($assoc_ary as $key => $var) { $fields[] = $key; if (is_null($var)) { $values[] = 'NULL'; } elseif (is_string($var)) { $values[] = "'" . $this->sql_escape($var) . "'"; } else { $values[] = (is_bool($var)) ? intval($var) : $var; } } $query = ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')'; } else if ($query == 'UPDATE' || $query == 'SELECT') { $values = array(); foreach ($assoc_ary as $key => $var) { if (is_null($var)) { $values[] = "$key = NULL"; } elseif (is_string($var)) { $values[] = "$key = '" . $this->sql_escape($var) . "'"; } else { $values[] = (is_bool($var)) ? "$key = " . intval($var) : "$key = $var"; } } $query = implode(($query == 'UPDATE') ? ', ' : ' AND ', $values); } return $query; } // Other query methods // // NOTE :: Want to remove _ALL_ reliance on sql_numrows from core code ... // don't want this here by a middle Milestone function sql_numrows($query_id = false) { if (!$query_id) { $query_id = $this->query_result; } // return (isset($this->limit_offset[$query_id])) ? @mssql_num_rows($query_id) - $this->limit_offset[$query_id] : @mssql_num_rows($query_id); return ($query_id) ? @mssql_num_rows($query_id) : false; } function sql_affectedrows() { return ($this->db_connect_id) ? @mssql_rows_affected($this->db_connect_id) : false; } function sql_fetchrow($query_id = false) { global $cache; if (!$query_id) { $query_id = $this->query_result; } if (isset($cache->sql_rowset[$query_id])) { return $cache->sql_fetchrow($query_id); } $row = @mssql_fetch_array($query_id, MSSQL_ASSOC); if ($row) { foreach ($row as $key => $value) { $row[$key] = ($value === ' ') ? trim($value) : $value; } } return $row; } function sql_fetchrowset($query_id = false) { if (!$query_id) { $query_id = $this->query_result; } if ($query_id) { unset($this->rowset[$query_id]); unset($this->row[$query_id]); $result = array(); while ($this->rowset[$query_id] = $this->sql_fetchrow($query_id)) { $result[] = $this->rowset[$query_id]; } return $result; } return false; } function sql_fetchfield($field, $rownum = -1, $query_id = false) { if (!$query_id) { $query_id = $this->query_result; } if ($query_id) { if ($rownum > -1) { // (!empty($this->limit_offset[$query_id])) ? @mssql_data_seek($query_id, ($this->limit_offset[$query_id] + $rownum)) : @mssql_data_seek($query_id, $rownum); @mssql_data_seek($query_id, $rownum); $row = @mssql_fetch_array($query_id, MSSQL_ASSOC); $result = isset($row[$field]) ? $row[$field] : false; } else { if (empty($this->row[$query_id]) && empty($this->rowset[$query_id])) { if ($this->sql_fetchrow($query_id)) { $result = $this->row[$query_id][$field]; } } else { if ($this->rowset[$query_id]) { $result = $this->rowset[$query_id][$field]; } elseif ($this->row[$query_id]) { $result = $this->row[$query_id][$field]; } } } return $result; } return false; } function sql_rowseek($rownum, $query_id = false) { if (!$query_id) { $query_id = $this->query_result; } if (isset($this->current_row[$query_id])) { // (!empty($this->limit_offset[$query_id])) ? @mssql_data_seek($query_id, ($this->limit_offset[$query_id] + $rownum)) : @mssql_data_seek($query_id, $rownum); @mssql_data_seek($query_id, $rownum); return true; } return false; } function sql_nextid() { $result_id = @mssql_query('SELECT @@IDENTITY', $this->db_connect_id); if ($result_id) { if (@mssql_fetch_array($result_id, MSSQL_ASSOC)) { return @mssql_result($result_id, 1); } } return false; } function sql_freeresult($query_id = false) { if (!$query_id) { $query_id = $this->query_result; } if (isset($this->open_queries[$query_id])) { unset($this->open_queries[$query_id]); unset($this->result_rowset[$query_id]); return @mssql_free_result($query_id); } return false; } function sql_escape($msg) { return str_replace("'", "''", str_replace('\\', '\\\\', $msg)); } function sql_error($sql = '') { if (!$this->return_on_error) { $this_page = (isset($_SERVER['PHP_SELF']) && !empty($_SERVER['PHP_SELF'])) ? $_SERVER['PHP_SELF'] : $_ENV['PHP_SELF']; $this_page .= '&' . ((isset($_SERVER['QUERY_STRING']) && !empty($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : (isset($_ENV['QUERY_STRING']) ? $_ENV['QUERY_STRING'] : '')); $message = '<u>SQL ERROR</u> [ ' . SQL_LAYER . ' ]<br /><br />' . @mssql_get_last_message() . '<br /><br /><u>CALLING PAGE</u><br /><br />' . htmlspecialchars($this_page) . (($sql != '') ? '<br /><br /><u>SQL</u><br /><br />' . $sql : '') . '<br />'; if ($this->transaction) { $this->sql_transaction('rollback'); } trigger_error($message, E_USER_ERROR); } $result = array( 'message' => @mssql_get_last_message($this->db_connect_id), 'code' => '' ); return $result; } function sql_report($mode, $query = '') { if (empty($_GET['explain'])) { return; } global $cache, $starttime, $phpbb_root_path; static $curtime, $query_hold, $html_hold; static $sql_report = ''; static $cache_num_queries = 0; if (!$query && !empty($query_hold)) { $query = $query_hold; } switch ($mode) { case 'display': if (!empty($cache)) { $cache->unload(); } $this->sql_close(); $mtime = explode(' ', microtime()); $totaltime = $mtime[0] + $mtime[1] - $starttime; echo '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=iso-8869-1"><meta http-equiv="Content-Style-Type" content="text/css"><link rel="stylesheet" href="' . $phpbb_root_path . 'adm/subSilver.css" type="text/css"><style type="text/css">' . "\n"; echo 'th { background-image: url(\'' . $phpbb_root_path . 'adm/images/cellpic3.gif\') }' . "\n"; echo 'td.cat { background-image: url(\'' . $phpbb_root_path . 'adm/images/cellpic1.gif\') }' . "\n"; echo '</style><title>' . $msg_title . '</title></head><body>'; echo '<table width="100%" cellspacing="0" cellpadding="0" border="0"><tr><td><a href="' . htmlspecialchars(preg_replace('/&explain=([^&]*)/', '', $_SERVER['REQUEST_URI'])) . '"><img src="' . $phpbb_root_path . 'adm/images/header_left.jpg" width="200" height="60" alt="phpBB Logo" title="phpBB Logo" border="0"/></a></td><td width="100%" background="' . $phpbb_root_path . 'adm/images/header_bg.jpg" height="60" align="right" nowrap="nowrap"><span class="maintitle">SQL Report</span> </td></tr></table><br clear="all"/><table width="95%" cellspacing="1" cellpadding="4" border="0" align="center"><tr><td height="40" align="center" valign="middle"><b>Page generated in ' . round($totaltime, 4) . " seconds with {$this->num_queries} queries" . (($cache_num_queries) ? " + $cache_num_queries " . (($cache_num_queries == 1) ? 'query' : 'queries') . ' returning data from cache' : '') . '</b></td></tr><tr><td align="center" nowrap="nowrap">Time spent on MySQL queries: <b>' . round($this->sql_time, 5) . 's</b> | Time spent on PHP: <b>' . round($totaltime - $this->sql_time, 5) . 's</b></td></tr></table><table width="95%" cellspacing="1" cellpadding="4" border="0" align="center"><tr><td>'; echo $sql_report; echo '</td></tr></table><br /></body></html>'; exit; break; case 'start': $query_hold = $query; $html_hold = ''; $curtime = explode(' ', microtime()); $curtime = $curtime[0] + $curtime[1]; break; case 'fromcache': $endtime = explode(' ', microtime()); $endtime = $endtime[0] + $endtime[1]; $result = @mssql_query($query, $this->db_connect_id); while ($void = @mssql_fetch_array($result, MSSQL_ASSOC)) { // Take the time spent on parsing rows into account } $splittime = explode(' ', microtime()); $splittime = $splittime[0] + $splittime[1]; $time_cache = $endtime - $curtime; $time_db = $splittime - $endtime; $color = ($time_db > $time_cache) ? 'green' : 'red'; $sql_report .= '<hr width="100%"/><br /><table class="bg" width="100%" cellspacing="1" cellpadding="4" border="0"><tr><th>Query results obtained from the cache</th></tr><tr><td class="row1"><textarea style="font-family:\'Courier New\',monospace;width:100%" rows="5">' . preg_replace('/\t(AND|OR)(\W)/', "\$1\$2", htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n", $query))) . '</textarea></td></tr></table><p align="center">'; $sql_report .= 'Before: ' . sprintf('%.5f', $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>'; // Pad the start time to not interfere with page timing $starttime += $time_db; @mssql_free_result($result); $cache_num_queries++; break; case 'stop': $endtime = explode(' ', microtime()); $endtime = $endtime[0] + $endtime[1]; $sql_report .= '<hr width="100%"/><br /><table class="bg" width="100%" cellspacing="1" cellpadding="4" border="0"><tr><th>Query #' . $this->num_queries . '</th></tr><tr><td class="row1"><textarea style="font-family:\'Courier New\',monospace;width:100%" rows="5">' . preg_replace('/\t(AND|OR)(\W)/', "\$1\$2", htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n", $query))) . '</textarea></td></tr></table> ' . $html_hold . '<p align="center">'; if ($this->query_result) { if (preg_match('/^(UPDATE|DELETE|REPLACE)/', $query)) { $sql_report .= "Affected rows: <b>" . $this->sql_affectedrows($this->query_result) . '</b> | '; } $sql_report .= 'Before: ' . sprintf('%.5f', $curtime - $starttime) . 's | After: ' . sprintf('%.5f', $endtime - $starttime) . 's | Elapsed: <b>' . sprintf('%.5f', $endtime - $curtime) . 's</b>'; } else { $error = $this->sql_error(); $sql_report .= '<b style="color: red">FAILED</b> - ' . SQL_LAYER . ' Error ' . $error['code'] . ': ' . htmlspecialchars($error['message']); } $sql_report .= '</p>'; $this->sql_time += $endtime - $curtime; break; } } } // class sql_db } // if ... define ?>