在本地phpStudy环境下可以连接到数据库，为什么放到网络服务器后就报错？
以下为请求代码：
<?phpheader("Content-type: text/html;charset=utf-8");//防止乱码//1、获取链接$conn=@mysql_connect("localhost","root","0123456zp");if(!$conn){ //mysql_error()是返回mysql的上一次操作 die("连接失败".mysql_error());}else{ //echo '连接成功！<br/>';}//2、选择对应的数据库@mysql_select_db("caiwu");//3、设置操作编码（可有可无，建议有）mysql_query("set names utf8");//保证是按照utf8码操作的【utf8无-的，有-的是网页版的！！！！！！！】$draw = $_GET['draw']; //第几次请求//排序$order_column = $_GET['order']['0']['column']; // 哪一列排序$order_dir= $_GET['order']['0']['dir']; // ase desc 升序或者降序//拼接排序sql$orderSql = "";if(isset($order_column)){ $i = intval($order_column); switch($i){ case 0;$orderSql = " order by id ".$order_dir;break; case 1;$orderSql = " order by kh ".$order_dir;break; case 2;$orderSql = " order by kj ".$order_dir;break; case 3;$orderSql = " order by cpx ".$order_dir;break; case 4;$orderSql = " order by zhd ".$order_dir;break; case 5;$orderSql = " order by afzhd ".$order_dir;break; case 6;$orderSql = " order by afxjd ".$order_dir;break; case 7;$orderSql = " order by zxrq ".$order_dir;break; case 8;$orderSql = " order by xs ".$order_dir;break; case 9;$orderSql = " order by crrq ".$order_dir;break; case 9;$orderSql = " order by skr ".$order_dir;break; case 9;$orderSql = " order by skzh ".$order_dir;break; default;$orderSql = ''; }}//分页$start = $_GET['start'];//从多少开始$length = $_GET['length'];//数据长度$limitSql = '';$limitFlag = isset($_GET['start']) && $length != -1 ;if ($limitFlag ) { $limitSql = " LIMIT ".intval($start).", ".intval($length);}//定义查询数据总记录数sql$sumSql = "SELECT count(id) as sum FROM financialdata";//条件过滤后记录数 必要$recordsFiltered = 0;//表的总记录数 必要$recordsTotal = 0;$recordsTotalResult = mysql_query($sumSql,$conn);while($row=mysql_fetch_assoc($recordsTotalResult)){ $recordsTotal = $row['sum'];}//搜索//定义过滤条件查询过滤后的记录数sql$search = $_GET['search']['value'];//获取前台传过来的过滤条件// 每列搜索$j = 1;$search_arr =array();$colSearchSql='';for($j=0;$j<6;$j++){ $colSearchable = $_GET['columns'][$j]['searchable']; $colSearchVal = $_GET['columns'][$j]['search']['value']; if(strlen($colSearchVal)>0 && $colSearchable == 'true' ){ switch ($j) { case 0: $colSearchVal = "id LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 1: $colSearchVal = "kh LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 2: $colSearchVal = "kj LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 3: $colSearchVal = "cpx LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 4: $colSearchVal = "zhd LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 5: $colSearchVal = "afzhd LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 5: $colSearchVal = "afxjd LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 6: $colSearchVal = "zxrq LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 7: $colSearchVal = "xs LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 8: $colSearchVal = "crrq LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 9: $colSearchVal = "skr LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; case 10: $colSearchVal = "skzh LIKE '%".$colSearchVal."%'"; array_push($search_arr,$colSearchVal); break; default: # code... break; } }}if(empty($search_arr) == false){ $colSearchSql = " WHERE ".implode(" AND ",$search_arr);}// 综合搜索sql// $zSearchSql =" where teacher_id || teacher_name || teacher_password || teacher_email || teacher_date || teacher_note LIKE '%".$search."%'";$zSearchSql = " id LIKE '%".$search."%' OR kh LIKE '%".$search."%' OR kj LIKE '%".$search."%' OR cpx LIKE '%".$search."%' OR zhd LIKE '%".$search."%' OR afzhd LIKE '%".$search."%'OR afxjd LIKE '%".$search."%'OR zxrq LIKE '%".$search."%'OR xs LIKE '%".$search."%'OR crrq LIKE '%".$search."%'OR skr LIKE '%".$search."%'OR skzh LIKE '%".$search."%'";// 拼接搜索SQL$sumSearchSql = '';if(strlen($colSearchSql)>0 && strlen($search)>0){ $sumSearchSql = $colSearchSql." AND (".$zSearchSql.")";}else if(strlen($colSearchSql)>0 && strlen($search)==0){ $sumSearchSql = $colSearchSql;}else if(strlen($colSearchSql)==0 && strlen($search)>0){ $sumSearchSql = " WHERE ".$zSearchSql;}else{ $sumSearchSql = '';}if(strlen($sumSearchSql)>0){ $recordsFilteredResult = mysql_query($sumSql.$sumSearchSql); while ($row = mysql_fetch_assoc($recordsFilteredResult)) { $recordsFiltered = $row['sum']; }}else{ $recordsFiltered = $recordsTotal;}// query data$sql='';$totalResultSql = "SELECT * FROM financialdata";$infos = array();// 拼接最终SQL$sql=$totalResultSql.$sumSearchSql.$orderSql.$limitSql;$dataResult = mysql_query($sql,$conn);while ($row = mysql_fetch_assoc($dataResult)) { // $obj = array($row['teacher_id'], $row['teacher_name'], $row['teacher_password'], $row['teacher_email'], $row['teacher_date'], $row['teacher_note']); // array_push($infos,$obj); array_push($infos,$row);}// return dataecho json_encode(array( "draw" => $draw, "recordsTotal" =>$recordsTotal, // necessary "recordsFiltered" =>$recordsFiltered, // necessary "data" =>$infos // necessary ),JSON_UNESCAPED_UNICODE);
放服务器报错
本地就没问题 就大神指点 初接触PHP
