diff options
Diffstat (limited to 'includes/db/mysql.php')
| -rw-r--r-- | includes/db/mysql.php | 552 |
1 files changed, 552 insertions, 0 deletions
diff --git a/includes/db/mysql.php b/includes/db/mysql.php new file mode 100644 index 0000000..a646e0d --- /dev/null +++ b/includes/db/mysql.php @@ -0,0 +1,552 @@ +<?php +/** +* +* @package dbal_mysql +* @version $Id: mysql.php,v 1.5 2006/02/10 01:30:19 scronide 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', 'mysql'); + +/** +* @package dbal_mysql +* MySQL Database Abstraction Layer +* Minimum Requirement is 3.23+/4.0+/4.1+ +*/ +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) ? @mysql_pconnect($this->server, $this->user, $sqlpassword) : @mysql_connect($this->server, $this->user, $sqlpassword); + + if ($this->db_connect_id && $this->dbname != '') + { + if (@mysql_select_db($this->dbname)) + { + return $this->db_connect_id; + } + } + + return $this->sql_error(''); + } + + // + // Other base methods + // + function sql_close() + { + if (!$this->db_connect_id) + { + return false; + } + + if (sizeof($this->open_queries)) + { + foreach ($this->open_queries as $i_query_id => $query_id) + { + @mysql_free_result($query_id); + } + } + + return @mysql_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 = @mysql_query('BEGIN', $this->db_connect_id); + $this->transaction = true; + break; + + case 'commit': + $result = @mysql_query('COMMIT', $this->db_connect_id); + $this->transaction = false; + + if (!$result) + { + @mysql_query('ROLLBACK', $this->db_connect_id); + } + break; + + case 'rollback': + $result = @mysql_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 = @mysql_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, $cache_ttl); + // mysql_free_result called within sql_save() + } + else if (strpos($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; + + // only limit the number of rows if $total is greater than 0 + if ($total > 0) + $query .= "\n LIMIT " . ((!empty($offset)) ? $offset . ', ' . $total : $total); + + 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 = $this->query_result; + } + + return ($query_id) ? @mysql_num_rows($query_id) : false; + } + + function sql_affectedrows() + { + return ($this->db_connect_id) ? @mysql_affected_rows($this->db_connect_id) : false; + } + + function sql_fetchrow($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); + } + + return ($query_id) ? @mysql_fetch_assoc($query_id) : false; + } + + 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) + { + $result = @mysql_result($query_id, $rownum, $field); + } + else + { + if (empty($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 = $this->query_result; + } + + return ($query_id) ? @mysql_data_seek($query_id, $rownum) : false; + } + + function sql_nextid() + { + return ($this->db_connect_id) ? @mysql_insert_id($this->db_connect_id) : false; + } + + function sql_freeresult($query_id = false) + { + if (!$query_id) + { + $query_id = $this->query_result; + } + + if (isset($this->open_queries[(int) $query_id])) + { + unset($this->open_queries[(int) $query_id]); + return @mysql_free_result($query_id); + } + + return false; + } + + function sql_escape($msg) { + if (function_exists('mysql_real_escape_string')) { + return @mysql_real_escape_string($msg, $this->db_connect_id); + } else { + return mysql_escape_string($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'] : '')); + + $message = '<u>SQL ERROR</u> [ ' . SQL_LAYER . ' ]<br /><br />' . @mysql_error() . '<br /><br /><u>CALLING PAGE</u><br /><br />' . htmlspecialchars($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' => @mysql_error(), + 'code' => @mysql_errno() + ); + + return $result; + } + + function sql_report($mode, $query = '') + { + if (empty($_GET['explain'])) + { + return; + } + + global $db, $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(); + } + $db->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 = ''; + + $explain_query = $query; + if (preg_match('/UPDATE ([a-z0-9_]+).*?WHERE(.*)/s', $query, $m)) + { + $explain_query = 'SELECT * FROM ' . $m[1] . ' WHERE ' . $m[2]; + } + elseif (preg_match('/DELETE FROM ([a-z0-9_]+).*?WHERE(.*)/s', $query, $m)) + { + $explain_query = 'SELECT * FROM ' . $m[1] . ' WHERE ' . $m[2]; + } + + if (preg_match('/^SELECT/', $explain_query)) + { + $html_table = FALSE; + + if ($result = mysql_query("EXPLAIN $explain_query", $this->db_connect_id)) + { + while ($row = mysql_fetch_assoc($result)) + { + if (!$html_table && sizeof($row)) + { + $html_table = TRUE; + $html_hold .= '<table class="bg" width="100%" cellspacing="1" cellpadding="4" border="0" align="center"><tr>'; + + foreach (array_keys($row) as $val) + { + $html_hold .= '<th nowrap="nowrap">' . (($val) ? ucwords(str_replace('_', ' ', $val)) : ' ') . '</th>'; + } + $html_hold .= '</tr>'; + } + $html_hold .= '<tr>'; + + $class = 'row1'; + foreach (array_values($row) as $val) + { + $class = ($class == 'row1') ? 'row2' : 'row1'; + $html_hold .= '<td class="' . $class . '">' . (($val) ? $val : ' ') . '</td>'; + } + $html_hold .= '</tr>'; + } + } + + if ($html_table) + { + $html_hold .= '</table>'; + } + } + + $curtime = explode(' ', microtime()); + $curtime = $curtime[0] + $curtime[1]; + break; + + case 'fromcache': + $endtime = explode(' ', microtime()); + $endtime = $endtime[0] + $endtime[1]; + + $result = mysql_query($query, $this->db_connect_id); + while ($void = mysql_fetch_assoc($result)) + { + // 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 += $time_db; + + mysql_free_result($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> - MySQL Error ' . $error['code'] . ': ' . htmlspecialchars($error['message']); + } + + $sql_report .= '</p>'; + + $this->sql_time += $endtime - $curtime; + break; + } + } +} // class sql_db + +} // if ... define + +?>
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