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uc_client/lib/dbi.class.php
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235
uc_client/lib/dbi.class.php
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<?php
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/*
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[UCenter] (C)2001-2099 Comsenz Inc.
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This is NOT a freeware, use is subject to license terms
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$Id: db.class.php 922 2009-02-19 01:30:22Z zhaoxiongfei $
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*/
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class ucclient_db {
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var $querynum = 0;
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var $link;
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var $histories;
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var $stmtcache = array();
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var $dbhost;
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var $dbuser;
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var $dbpw;
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var $dbcharset;
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var $pconnect;
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var $tablepre;
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var $time;
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var $goneaway = 5;
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function connect($dbhost, $dbuser, $dbpw, $dbname = '', $dbcharset = '', $pconnect = 0, $tablepre='', $time = 0) {
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if (intval($pconnect) === 1) $dbhost = 'p:' . $dbhost;
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$this->dbhost = $dbhost;
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$this->dbuser = $dbuser;
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$this->dbpw = $dbpw;
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$this->dbname = $dbname;
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$this->dbcharset = $dbcharset;
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$this->pconnect = $pconnect;
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$this->tablepre = $tablepre;
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$this->time = $time;
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mysqli_report(MYSQLI_REPORT_OFF);
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if(!$this->link = new mysqli($dbhost, $dbuser, $dbpw, $dbname)) {
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$this->halt('Can not connect to MySQL server');
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}
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$this->link->options(MYSQLI_OPT_LOCAL_INFILE, false);
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if($dbcharset) {
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$this->link->set_charset($dbcharset);
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}
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$this->link->query("SET sql_mode=''");
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$this->link->query("SET character_set_client=binary");
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}
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function fetch_array($query, $result_type = MYSQLI_ASSOC) {
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return $query ? $query->fetch_array($result_type) : null;
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}
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function result_first($sql) {
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$query = $this->query($sql);
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return $this->result($query, 0);
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}
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function fetch_first($sql) {
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$query = $this->query($sql);
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return $this->fetch_array($query);
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}
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function fetch_all($sql, $id = '') {
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$arr = array();
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$query = $this->query($sql);
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while($data = $this->fetch_array($query)) {
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$id ? $arr[$data[$id]] = $data : $arr[] = $data;
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}
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return $arr;
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}
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function result_first_stmt($sql, $key = array(), $value = array()) {
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$query = $this->query_stmt($sql, $key, $value);
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return $this->result($query, 0);
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}
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function fetch_first_stmt($sql, $key = array(), $value = array()) {
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$query = $this->query_stmt($sql, $key, $value);
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return $this->fetch_array($query);
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}
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function fetch_all_stmt($sql, $key = array(), $value = array(), $id = '') {
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$arr = array();
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$query = $this->query_stmt($sql, $key, $value);
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while($data = $this->fetch_array($query)) {
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$id ? $arr[$data[$id]] = $data : $arr[] = $data;
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}
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return $arr;
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}
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function cache_gc() {
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$this->query("DELETE FROM {$this->tablepre}sqlcaches WHERE expiry<$this->time");
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}
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function query($sql, $type = '', $cachetime = FALSE) {
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$resultmode = $type == 'UNBUFFERED' ? MYSQLI_USE_RESULT : MYSQLI_STORE_RESULT;
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if(!($query = $this->link->query($sql, $resultmode)) && $type != 'SILENT') {
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$this->halt('MySQL Query Error', $sql);
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}
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$this->querynum++;
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$this->histories[] = $sql;
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return $query;
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}
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function query_stmt($sql, $key = array(), $value = array(), $type = '', $saveprep = FALSE, $cachetime = FALSE) {
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$parse = $this->parse_query($sql, $key, $value);
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if($saveprep && array_key_exists(hash("sha256", $parse[0]), $this->stmtcache)) {
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$stmt = & $this->stmtcache[hash("sha256", $parse[0])];
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} else {
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$stmt = $this->link->prepare($parse[0]);
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$saveprep && $this->stmtcache[hash("sha256", $parse[0])] = & $stmt;
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}
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if(!empty($key)) {
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$stmt->bind_param(...$parse[1]);
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}
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if(!($query = $stmt->execute()) && $type != 'SILENT') {
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$this->halt('MySQL Query Error', $parse[0]);
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}
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$this->querynum++;
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$this->histories[] = $parse[0];
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return strncasecmp("SELECT", $sql, 6) ? $query : $stmt->get_result();
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}
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function affected_rows() {
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return $this->link->affected_rows;
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}
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function error() {
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return $this->link->error;
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}
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function errno() {
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return $this->link->errno;
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}
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function result($query, $row) {
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if(!$query || $query->num_rows == 0) {
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return null;
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}
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$query->data_seek($row);
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$assocs = $query->fetch_row();
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return $assocs[0];
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}
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function num_rows($query) {
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$query = $query ? $query->num_rows : 0;
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return $query;
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}
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function num_fields($query) {
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return $query ? $query->field_count : 0;
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}
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function free_result($query) {
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return $query ? $query->free() : false;
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}
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function insert_id() {
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return ($id = $this->link->insert_id) >= 0 ? $id : $this->result($this->query("SELECT last_insert_id()"), 0);
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}
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function fetch_row($query) {
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$query = $query ? $query->fetch_row() : null;
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return $query;
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}
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function fetch_fields($query) {
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return $query ? $query->fetch_field() : null;
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}
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function version() {
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return $this->link->server_info;
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}
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function escape_string($str) {
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return $this->link->escape_string($str);
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}
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function close() {
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return $this->link->close();
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}
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function parse_query($sql, $key = array(), $value = array()) {
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$list = '';
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$array = array();
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if(strpos($sql, '?')) {
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foreach ($key as $k => $v) {
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if(in_array($v, array('i', 'd', 's', 'b'))) {
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$list .= $v;
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$array = array_merge($array, (array)$value[$k]);
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}
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}
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} else {
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preg_match_all("/:([A-Za-z0-9]*?)( |$)/", $sql, $matches);
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foreach ($matches[1] as $match) {
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if(in_array($key[$match], array('i', 'd', 's', 'b'))) {
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$list .= $key[$match];
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$array = array_merge($array, (array)$value[$match]);
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$sql = str_replace(":".$match, "?", $sql);
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}
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}
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}
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return array($sql, array_merge((array)$list, $array));
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}
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function halt($message = '', $sql = '') {
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$error = $this->error();
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$errorno = $this->errno();
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if($errorno == 2006 && $this->goneaway-- > 0) {
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$this->connect($this->dbhost, $this->dbuser, $this->dbpw, $this->dbname, $this->dbcharset, $this->pconnect, $this->tablepre, $this->time);
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$this->query($sql);
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} else {
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$s = '';
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if($message) {
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$s = "<b>UCenter info:</b> $message<br />";
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}
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if($sql) {
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$s .= '<b>SQL:</b>'.htmlspecialchars($sql).'<br />';
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}
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$s .= '<b>Error:</b>'.$error.'<br />';
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$s .= '<b>Errno:</b>'.$errorno.'<br />';
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$s = str_replace(UC_DBTABLEPRE, '[Table]', $s);
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exit($s);
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}
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}
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}
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?>
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