=') ) { if (DB_CHARSET!='') { pwg_query('SET NAMES "'.DB_CHARSET.'"'); } } elseif ( strtolower(PWG_CHARSET)!='iso-8859-1' ) { fatal_error('PWG supports only iso-8859-1 charset on MySql version '.mysql_get_server_info()); } } function pwg_get_db_version() { list($mysql_version) = pwg_db_fetch_row(pwg_query('SELECT VERSION();')); return $mysql_version; } function pwg_query($query) { global $conf,$page,$debug,$t2; $start = get_moment(); ($result = mysql_query($query)) or my_error($query, $conf['die_on_sql_error']); $time = get_moment() - $start; if (!isset($page['count_queries'])) { $page['count_queries'] = 0; $page['queries_time'] = 0; } $page['count_queries']++; $page['queries_time']+= $time; if ($conf['show_queries']) { $output = ''; $output.= '
['.$page['count_queries'].'] '; $output.= "\n".$query; $output.= "\n".'(this query time : '; $output.= ''.number_format($time, 3, '.', ' ').' s)'; $output.= "\n".'(total SQL time : '; $output.= number_format($page['queries_time'], 3, '.', ' ').' s)'; $output.= "\n".'(total time : '; $output.= number_format( ($time+$start-$t2), 3, '.', ' ').' s)'; if ( $result!=null and preg_match('/\s*SELECT\s+/i',$query) ) { $output.= "\n".'(num rows : '; $output.= mysql_num_rows($result).' )'; } elseif ( $result!=null and preg_match('/\s*INSERT|UPDATE|REPLACE|DELETE\s+/i',$query) ) { $output.= "\n".'(affected rows : '; $output.= mysql_affected_rows().' )'; } $output.= "\n"; $debug .= $output; } return $result; } function pwg_db_nextval($column, $table) { $query = ' SELECT IF(MAX('.$column.')+1 IS NULL, 1, MAX('.$column.')+1) FROM '.$table; list($next) = pwg_db_fetch_row(pwg_query($query)); return $next; } function pwg_db_changes($result) { return mysql_affected_rows($result); } function pwg_db_num_rows($result) { return mysql_num_rows($result); } function pwg_db_fetch_assoc($result) { return mysql_fetch_assoc($result); } function pwg_db_fetch_row($result) { return mysql_fetch_row($result); } function pwg_db_fetch_object($result) { return mysql_fetch_object($result); } function pwg_db_free_result($result) { return mysql_free_result($result); } function pwg_db_real_escape_string($s) { return mysql_real_escape_string($s); } function pwg_db_insert_id() { return mysql_insert_id(); } /** * * complex functions * */ /** * creates an array based on a query, this function is a very common pattern * used here * * @param string $query * @param string $fieldname * @return array */ function array_from_query($query, $fieldname) { $array = array(); $result = pwg_query($query); while ($row = mysql_fetch_assoc($result)) { array_push($array, $row[$fieldname]); } return $array; } define('MASS_UPDATES_SKIP_EMPTY', 1); /** * updates multiple lines in a table * * @param string table_name * @param array dbfields * @param array datas * @param int flags - if MASS_UPDATES_SKIP_EMPTY - empty values do not overwrite existing ones * @return void */ function mass_updates($tablename, $dbfields, $datas, $flags=0) { if (count($datas) == 0) return; // depending on the MySQL version, we use the multi table update or N update queries if (count($datas) < 10 or version_compare(mysql_get_server_info(), '4.0.4') < 0) { // MySQL is prior to version 4.0.4, multi table update feature is not available foreach ($datas as $data) { $query = ' UPDATE '.$tablename.' SET '; $is_first = true; foreach ($dbfields['update'] as $key) { $separator = $is_first ? '' : ",\n "; if (isset($data[$key]) and $data[$key] != '') { $query.= $separator.$key.' = \''.$data[$key].'\''; } else { if ($flags & MASS_UPDATES_SKIP_EMPTY ) continue; // next field $query.= "$separator$key = NULL"; } $is_first = false; } if (!$is_first) {// only if one field at least updated $query.= ' WHERE '; $is_first = true; foreach ($dbfields['primary'] as $key) { if (!$is_first) { $query.= ' AND '; } if ( isset($data[$key]) ) { $query.= $key.' = \''.$data[$key].'\''; } else { $query.= $key.' IS NULL'; } $is_first = false; } pwg_query($query); } } // foreach update } // if mysql_ver or count
"); trigger_error($error, E_USER_WARNING); echo(""); } ?>