Php Mssql operation is simple and encapsulated to support stored procedures_PHP tutorial

复制代码 代码如下:

/*
* class :Mssql
* time :2009-12-10
* author :Libaochang
* version :1.0b
* description :mssql database access class,it can execute the procedur or sql
*/
class MssqlUtil
{
var $user = null; //database user name
var $keys = null; //database user password
var $host = 'localhost'; //database host name/ip and port
var $base = null; //database name
var $link = null; //create link
/**
* construct function init all parmeters
* @param $host database host name/ip and port
* @param $user database user name
* @param $keys database user password
* @param $base database name
*/
function __construct($host,$user,$keys,$base)
{
$this->host = $host;
$this->user = $user;
$this->keys = $keys;
$this->base = $base;
}
/**
* create the connection
*/
function connect()
{
$this->link = mssql_connect($this->host,$this->user,$this->keys);
if(!$this->link)
{
die('connecting failed...check the module and setting...');
}
$select = mssql_select_db($this->base,$this->link);
if(!$select)
{
die('data base is not exist...,please checke it ...');
}
}
/**
* execute the procedur width the parameter
* @param $pName procedur name
* @param $parName parameters it's like this $par=array('@a'=>'a')
* @param $sqlTyle the procedur's parameter type, it's llike this $sqlType=array(SQLVARCHAR,SQLVARCHAR); and there is not the char single quote mark(').
* @return object array
*/
function executeProcedur($pName,$parName,$sqlTyle)
{
$this->connect();
$stmt = mssql_init($pName,$this->link);
if(isset($parName))
{
$i = 0;
foreach($parName as $par=>$value)
{
mssql_bind($stmt,$par,$value,$sqlTyle[$i]);
++$i;
}
$res = mssql_execute($stmt);
$this->close();
while($row=mssql_fetch_assoc($res))
{
$r[] = $row;
}
unset($i);
mssql_free_result($res);
mssql_free_statement($stmt);
return $r;
}
}
/**
* execute procedur without the parameter
* @param $pName Procedur Name
* @return object array
*/
function executeProcedurNoPar($pName)
{
$this->connect();
$stmt = mssql_init($pName,$this->link);
$res = mssql_execute($stmt);
$this->close();
while($row=mssql_fetch_assoc($res))
{
$r[] = $row;
}
mssql_free_result($res);
mssql_free_statement($stmt);
return $r;
}
/**
* Get one row return Array
* @param $sql
* @return Array
*/
function getRowArray($sql)
{
$res = $this->query($sql);
$r = mssql_fetch_row($res);
mssql_free_result($res);
return $r;
}
/**
* Get one row return object
* @param $sql Sql
* @return Object
*/
function getRowObject($sql)
{
$res = $this->query($sql);
$r = mssql_fetch_assoc($res);
return $r;
}
/**
* Execute one sql
* @param $sql Sql
* @return result
*/
function query($sql)
{
$this->connect();
$res = mssql_query($sql,$this->link);
$this->close();
return $res;
}
/**
* Get every row from result by Object, Return a Array with every element is Object
* @param $sql
* @return Object Array result
*/
function getResult($sql)
{
$res = $this->query($sql);
while($row=mssql_fetch_assoc($res))
{
$r[] = $row;
}
unset($row);
mssql_free_result($res);
return $r;
}
/**
* execute a sql
* @param $sql Sql
*/
function executeSql($sql)
{
return $this->query($sql);
}
/**
* execute a sql statement
* @param $sql
* @return int $affected rows
*/
function querySql($sql)
{
$this->connect();
mssql_query($sql,$this->link);
$affected = mssql_rows_affected($this->link);
$this->close();
return $affected;
}
/**
* close connection
*/
function close()
{
mssql_close();
}
}
?>

The following is a call to

Copy code The code is as follows:

function __autoload($MssqlUtil)
{
require $MssqlUtil.'.php';
}
$db = new MssqlUtil($config['host'],$config['user'],$config['keys'],$config ['base']);

Mainly talk about stored procedure calls with parameters

Copy code The code is as follows:

$pName stored procedure name
$parName parameter, the parameter form is very important, it is an array type, the corresponding relationship is
array('@a'=>'a') @a is Parameters in the stored procedure, a is the value to be passed
$sqlTyle is the data type of the stored procedure parameters, in the form of an array, which is also very important
array(SQLCHAR,SQLVARCHAR), be careful not to add single quotes, etc., because SQLVARCHAR are some constants of SQL

Stored procedures with parameters
$db->executeProcedur($pName,$parName,$sqlTyle);
Stored procedures without parameters
$db-> ;executeProcedurNoPar($pName);

select * from t2 where t2.id in(select max(t2.id) from t1 join t2 on t1.id = t2.pid group by t1.id);
Get the latest piece of data for each category. Make a note here.
t1 is the category table, t2 is the main table

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