php连接mysql与mssql 2005数据库代码_PHP教程

php教程连接mssql 2005 1.下载以下两个文件,放入php ext目录及system32

php_sqlsrv_52_ts_vc6.dll   (线程安全)

php_sqlsrv_52_nts_vc6.dll (非线程安全)

vc6用于apache,vc9用于iis

2.修改php.ini

extension=php_sqlsrv_52_ts_vc6.dll

3.下载sqlncli.msi，微软官方可以下

安装的时候提示是sql server 2008的，不过2005也是可以用的。

4.测试代码

$servername = "127.0.0.1";
$connectioninfo = array("database"=>"testdb","uid"=>"test","pwd"=>"test");
$conn = sqlsrv_connect($servername, $connectioninfo);

if($conn) {
    echo "connection established.
";
} else {
    echo "connection could not be established.
";
    die(print_r(sqlsrv_errors(), true));
    exit();
}

$sql = "select * from t_employee";
$result = sqlsrv_query($conn,$sql);
$data = array();
while($row=sqlsrv_fetch_array($result)) {
    $data[] = $row;
}

foreach($data as $p) {
    echo $p['name']."
";
}

sqlsrv_close($conn);

echo "
done
";
echo date("y-m-d h:i:s");

?>

mysql教程连接类

class db_handle {
    var $classname = "db_handle";
    var $server;
    var $username;
    var $password;
    var $database;
    var $linkid = 0;
    var $queryresult = "";
    var $lastinsertid = "";
    /* private ignore=>ignore the error and continue, halt=>report the error and halt, report=>report the error and continue */
    var $halt_on_error = "report";
    var $error = "";
    var $errno = 0;
    /**public
     * remark: this is the db_mysql_class's structure
     * function: set the server,username,password,database variable.
     */
    function db_handle($server = "", $username = "", $password = "", $database = "") {
        $this->server = $server;
        $this->username = $username;
        $this->password = $password;
        $this->database = $database;
    }
    /**public
     * function: connect database and select database
     * success: retun 1
     * failed: return 0
     */
    function connect() {
        $this->linkid = @mssql_pconnect ( $this->server, $this->username, $this->password );
        if (! $this->linkid) {
            $this->halt ( "mssql_pconnect($this->server,$this->username,$this->password): failed" );
            return 0;
        }
        if (! @mssql_select_db ( $this->database )) {
            $this->halt ( "mssql_select_db($this->database) failed." );
            return 0;
        }
        return 1;
    }
    /**public
     * function: check the database, if exist then select
     * exist: return 1
     * not exist: return 0
     */
    function selectdatabase() {
        if (@mssql_select_db ( $this->database ))
            return 1;
        else
            return 0;
    }
    /**public
     * function: execute sql instruction
     * success: return sql result.
     * failed: return 0;
     */
    function execquery($sql = "") {
        $this->connect();
        if ($this->linkid == 0) {
            $this->halt ( "execute sql failed: have not valid database connect." );
            return 0;
        }
        ob_start ();
        $this->queryresult = mssql_query ( $sql, $this->linkid );
        $error = ob_get_contents ();
        ob_end_clean ();
        if ($error) {
            $this->halt ( "execute sql: mssql_query($sql,$this->linkid) failed." );
            return 0;
        }
        $reg = "#insert into#";
        if (preg_match ( $reg, $sql )) {
            $sql = "select @@identity as id";
            $res = mssql_query ( $sql, $this->linkid );
            $this->lastinsertid = mssql_result ( $res, 0, id );
        }
        return $this->queryresult;
    }
   
    /**public
     * function: get the query result's row number
     * success: return the row fo the result
     * failed: return 0
     */
    function gettotalrownum($result = "") {
        if ($result != "")
            $this->queryresult = $result;
        $row = @mssql_num_rows ( $this->queryresult );
        if ($row >= 0)
            return $row;
        $this->halt ( "get a row of result failed: result $result is invalid." );
        return 0;
    }
   
    /**public
     * function: get the last insert record's id
     * success: return id
     * failed: return 0
     */
    function lastinsertid() {
        return $this->lastinsertid;
    }
   
    /**public
     * function: get a field's value
     * success: return value of the field
     * failed: return 0
     */
    function getfield($result = "", $row = 0, $field = 0) {
        if ($result != "")
            $this->queryresult = $result;
        $fieldvalue = @mssql_result ( $this->queryresult, $row, $field );
        if ($fieldvalue != "")
            return $fieldvalue;
        $this->halt ( "get field: mssql_result($this->queryresult,$row,$field) failed." );
        return 0;
       
    //here should have error handle
    }
   
    /**public
     * function: get next record
     * success: return a array of the record's value
     * failed: return 0
     */
    function nextrecord($result = "") {
        if ($result != "")
            $this->queryresult = $result;
        $record = @mssql_fetch_array ( $this->queryresult );
        if (is_array ( $record ))
            return $record;
            //$this->halt("get the next record failed: the result $result is invalid.");
        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 );
    }
   
    /**public
     * function: set the halt_on_error's state
     * success: return 1
     * failed: return 0
     */
    function sethaltonerror($state = "ignore") {
        if (! ($state == "ignore" || $state == "report" || $state == "halt")) {
            $this->halt ( "set the halt_on_error fail: there is no state value $state" );
            return 0;
        }
        $this->halt_on_error = $state;
        return 1;
    }
   
    /**public
     * function: get the halt_on_error's state
     */
    function gethaltonerror() {
        return $this->halt_on_error;
    }
   
    /**public
     * function: get the class's name
     */
    function tostring() {
        return $this->classname;
    }
   
    /**private
     * function: error handle
     */
    function halt($msg) {
        $this->error = @mysql_error ( $this->linkid );
        $this->errno = @mysql_errno ( $this->linkid );
        if ($this->halt_on_error == "ignore")
            return;
        $this->makemsg ( $msg );
        if ($this->halt_on_error == "halt")
            die ( "session halted" );
    }
   
    /**private
     * function: make error information and print
     */
    function makemsg($msg) {
        printf ( "database error: %sn", $msg );
        printf ( "mysql error: %s (%s)n", $this->errno, $this->error );
    }
}