php中如何連接MSSQL,很多新手對(duì)此不是很清楚,為了幫助大家解決這個(gè)難題,下面小編將為大家詳細(xì)講解,有這方面需求的人可以來(lái)學(xué)習(xí)下,希望你能有所收獲。
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1.連接MSSQL
$conn=mssql_connect("實(shí)例名或者 } 2.選擇要連接的數(shù)據(jù)庫(kù) 1mssql_select_db("dbname"); 3.執(zhí)行查詢 $rs = mssql_query("select top 1 id,username from tbname",$conn); // 或者直接執(zhí)行update,insert等語(yǔ)句,可以不用為返回結(jié)果賦值 mssql_query("update tbname set username='niunv' where id=1"); 4.獲取記錄集行數(shù) 1echo mssql_num_rows($rs); 5.獲取記錄集 if($row=mssql_fetch_array($rs)) { $id = $row[0];//獲取ID字段值 $username = $row[1];//獲取username字段值 } 6.獲取新增記錄的ID 將id字段設(shè)置為IDENTITY字段,執(zhí)行insert語(yǔ)句以后,就會(huì)產(chǎn)生一個(gè) @@IDENTITY 全局變量值,查詢出來(lái)就是最后一條新增記錄的ID了. mssql_query("insert into tbname(username) values ('nv')",$conn); $rs = mssql_query("select @@IDENTITY as id",$conn); if($row=mssql_fetch_array($rs)) { echo $row[0]; } 7.釋放記錄集 1mssql_free_result($rs); 8.關(guān)閉連接 1mssql_close($conn); 注:用PHP操作MSSQL比在ASP連接MySQL要簡(jiǎn)單,所以,當(dāng)需要MSSQL與MYSQL并存時(shí),用PHP連接MSSQL來(lái)操作MYSQL與MSSQL并存比較簡(jiǎn)單好用.如果是ASP連接MYSQL,需要安裝一個(gè)MYSQL驅(qū)動(dòng),默認(rèn)windows的ODBC沒(méi)有安裝,很遺憾... 在web服務(wù)器上至少安裝了mssql的客戶端 打開(kāi)php.ini把;extension=php_mssql.dll 前面的分號(hào)去掉 有必要話:需要制定extension_dir 推薦使用 php<=4.0.9 <=5.0.3目前 5.0.3="" class="" mssql="" var="" linkid="0;" pagenum="0;//分頁(yè)用---共有幾條數(shù)據(jù)" function="" server="" username="" password="" database="" this-="">server = $Server; $this->userName = $UserName; $this->passWord = $PassWord; $this->dataBase = $DataBase; } /** *數(shù)據(jù)庫(kù)連接 **/ function db_connect(){ $this->linkID = mssql_pconnect($this->server,$this->userName,$this->passWord); if(!$this->linkID){ $this->ER = "db_connect($this->server,$this->userName,$this->passWord) error"; return 0; } if (!mssql_select_db($this->dataBase,$this->linkID)) { $this->ER = "mssql_select_db($this->dataBase,$this->lastInsertID) error"; return 0; } return $this->linkID; } /**public * function: Check the database, if exist then select * exist: return 1 * not exist: return 0 */ function selectDatabase(){ if(mssql_select_db($this->dataBase)) return 1; else return 0; } /** *數(shù)據(jù)操作 **/ function query($Str){ if ($this->linkID == 0) { $this->ER = "數(shù)據(jù)庫(kù)還沒(méi)有連接!!"; } $this->queryResult = mssql_query($Str); //$this->queryResult = mssql_query($Str,$this->linkID); if (!$this->queryResult) { $this->ER = "$Str.沒(méi)有操作成功,query error!!"; return 0;//****************對(duì)于php 4.3.9以上版本的錯(cuò)誤用1 } return $this->queryResult; } /** *數(shù)據(jù)獲取 **/ function fetch_array($result){ if($result != "") $this->queryResult = $result; $rec =mssql_fetch_array($this->queryResult); if(is_array($rec)){ return $rec; } //$this->ER = "沒(méi)有獲取數(shù)據(jù)!"; return 0; } /**public * function: Free the Query Result * success return 1 * failed: return 0 */ function freeResult($result=""){ if($result != "") $this->queryResult = $result; return mssql_free_result($this->queryResult); } /** *獲取影響的的行數(shù) *獲取操作過(guò)的行數(shù) **/ function num_rows($result=""){ if ($result != "") { $this->queryResult = $result; $row = mssql_num_rows($this->queryResult); return $row; } } /** *獲取查詢結(jié)果---多個(gè) **/ function result_ar($str=''){ if (empty($str)) { return 0; } $back = array(); $this->queryResult = $this->query($str); while ($row = $this->fetch_array($this->queryResult)) { $back[] = $row; } return $back; } /** *數(shù)據(jù)庫(kù)信息分頁(yè) *$Result 數(shù)據(jù)庫(kù)操作 *str ==sql語(yǔ)句 *page ==第幾頁(yè) *showNum ==顯示幾頁(yè) */ function page($Str,$Page=0,$ShowNum=5){ $back = array();//返回?cái)?shù)據(jù) $maxNum = 0; if ($Str == "") { $this->ER = "沒(méi)有數(shù)據(jù)"; return 0; } $this->queryResult = $this->query($Str); if($this->queryResult){ if($Page==""){ $nopa=0; }else{ $nopa = ($Page-1)*$ShowNum; if ($nopa<0) nopa="0;" maxnum="$this-">num_rows($this->queryResult); $k=0; $i=0; $dd=$this->fetch_array($this->queryResult); while($dd&&$nopa<=$maxNum&&$i<$shownum){ nopa="">= $maxNum) $nopa = $maxNum; mssql_data_seek($this->queryResult,$nopa); $row=$this->fetch_array($this->queryResult); $nopa++; $i++; $back[] = $row; if ($nopa >=$maxNum) { break; } } } $this->pageNum = $maxNum; return $back; } /** *分頁(yè)的html頁(yè)碼 */ function page_html($DataNum=0,$Page=1,$ShowNum=3,$web,$Post=''){ if ($DataNum == 0) { $back = "沒(méi)有要查詢的數(shù)據(jù)"; }else { if ($ShowNum<=0) {
$ShowNum = 3;
}
if ($Page<=0) {
$Page = 1;
}
if (empty($web)) {
$web = "#";
}
$pageNum = ceil($DataNum/$ShowNum);
if ($Page <= 1) {
$top = "首頁(yè)<<";
}else {
$top = "首頁(yè)<< ";
}
if ($Page !==1) {
$upPage = "上一頁(yè)";
}else {
$upPage = "上一頁(yè)";
}
if ($Page < $pageNum) {
$downPage = "下一頁(yè)";
}else {
$downPage = "下一頁(yè)";
}
if ($Page == $pageNum) {
$foot = ">>尾頁(yè)"; }else { $foot = " >>尾頁(yè)"; } $back = <<
共 $pageNum 頁(yè)
第 $Page/$pageNum 頁(yè) $top $upPage $downPage $foot
EOT;
}
return $back;
}
}//end class
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