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[经验分享] discuz7里面的mysql类dbstuff-HOHO网页设计

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发表于 2018-9-28 12:15:37 | 显示全部楼层 |阅读模式
http://blog.51cto.com/xcf007/images/editer/InBlock.gifclass dbstuff {
  var $version = '';



  function connect($dbhost, $dbuser, $dbpw, $dbname = '', $pconnect = 0, $halt = TRUE, $dbcharset2 = '') {

  $func = empty($pconnect) ? 'mysql_connect' : 'mysql_pconnect';
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    if(!$this->link = @$func($dbhost, $dbuser, $dbpw, 1)) {

http://blog.51cto.com/xcf007/images/editer/InBlock.gif      $halt && $this->halt('Can not connect to MySQL server');


http://blog.51cto.com/xcf007/images/editer/InBlock.gif      if($this->version() > '4.1') {

http://blog.51cto.com/xcf007/images/editer/InBlock.gif        global $charset, $dbcharset;

http://blog.51cto.com/xcf007/images/editer/InBlock.gif        $dbcharset = $dbcharset2 ? $dbcharset2 : $dbcharset;

http://blog.51cto.com/xcf007/images/editer/InBlock.gif        $dbcharset = !$dbcharset && in_array(strtolower($charset), array('gbk', 'big5', 'utf-8')) ? str_replace('-', '', $charset) : $dbcharset;

http://blog.51cto.com/xcf007/images/editer/InBlock.gif        $serverset = $dbcharset ? 'character_set_connection='.$dbcharset.', character_set_results='.$dbcharset.', character_set_client=binary' : '';

http://blog.51cto.com/xcf007/images/editer/InBlock.gif        $serverset .= $this->version() > '5.0.1' ? ((empty($serverset) ? '' : ',').'sql_mode=\'\'') : '';

http://blog.51cto.com/xcf007/images/editer/InBlock.gif        $serverset && mysql_query("SET $serverset", $this->link);


http://blog.51cto.com/xcf007/images/editer/InBlock.gif      $dbname && @mysql_select_db($dbname, $this->link);



  }

  function select_db($dbname) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return mysql_select_db($dbname, $this->link);



  function fetch_array($query, $result_type = MYSQL_ASSOC) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return mysql_fetch_array($query, $result_type);



  function fetch_first($sql) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return $this->fetch_array($this->query($sql));



  function result_first($sql) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return $this->result($this->query($sql), 0);



  function query($sql, $type = '') {

  global $debug, $discuz_starttime, $sqldebug, $sqlspenttimes;

  if(defined('SYS_DEBUG') && SYS_DEBUG) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif      @include_once DISCUZ_ROOT.'./include/debug.func.php';




  $func = $type == 'UNBUFFERED' && @function_exists('mysql_unbuffered_query') ?
http://blog.51cto.com/xcf007/images/editer/InBlock.gif      'mysql_unbuffered_query' : 'mysql_query';

http://blog.51cto.com/xcf007/images/editer/InBlock.gif    if(!($query = $func($sql, $this->link))) {

http://blog.51cto.com/xcf007/images/editer/InBlock.gif      if(in_array($this->errno(), array(2006, 2013)) && substr($type, 0, 5) != 'RETRY') {


http://blog.51cto.com/xcf007/images/editer/InBlock.gif        require DISCUZ_ROOT.'./config.inc.php';

http://blog.51cto.com/xcf007/images/editer/InBlock.gif        $this->connect($dbhost, $dbuser, $dbpw, $dbname, $pconnect, true, $dbcharset);

http://blog.51cto.com/xcf007/images/editer/InBlock.gif        $this->query($sql, 'RETRY'.$type);

http://blog.51cto.com/xcf007/images/editer/InBlock.gif      } elseif($type != 'SILENT' && substr($type, 5) != 'SILENT') {

http://blog.51cto.com/xcf007/images/editer/InBlock.gif        $this->halt('MySQL Query Error', $sql);




  $this->querynum++;



  function affected_rows() {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return mysql_affected_rows($this->link);



  function error() {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return (($this->link) ? mysql_error($this->link) : mysql_error());



  function errno() {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return intval(($this->link) ? mysql_errno($this->link) : mysql_errno());



  function result($query, $row = 0) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    $query = @mysql_result($query, $row);




  function num_rows($query) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    $query = mysql_num_rows($query);




  function num_fields($query) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return mysql_num_fields($query);



  function free_result($query) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return mysql_free_result($query);



  function insert_id() {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return ($id = mysql_insert_id($this->link)) >= 0 ? $id : $this->result($this->query("SELECT last_insert_id()"), 0);



  function fetch_row($query) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    $query = mysql_fetch_row($query);




  function fetch_fields($query) {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return mysql_fetch_field($query);



  function version() {

http://blog.51cto.com/xcf007/images/editer/InBlock.gif      $this->version = mysql_get_server_info($this->link);





  function close() {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    return mysql_close($this->link);



  function halt($message = '', $sql = '') {
http://blog.51cto.com/xcf007/images/editer/InBlock.gif    define('CACHE_FORBIDDEN', TRUE);

http://blog.51cto.com/xcf007/images/editer/InBlock.gif    require_once DISCUZ_ROOT.'./include/db_mysql_error.inc.php';





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