php mssql 数据库连接类代码(1/2)_PHP教程

php教程 mssql 数据库教程连接类代码

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class DB_Sql {   var $Host     = "";   var $Database = "";   var $User     = "";   var $Password = "";   var $Link_ID  = 0;   var $Query_ID = 0;   var $Record   = array();   var $Row      = 0;     var $Errno    = 0;   var $Error    = "";   var $Auto_Free = 0;     ## set this to 1 to automatically free results       /* public: constructorwww.bKjia.c0m */   function DB_Sql($query = "") {       $this->query($query);   }   function connect() {     if ( 0 == $this->Link_ID ) {       $this->Link_ID=mssql_connect($this->Host, $this->User, $this->Password);       if (!$this->Link_ID)         $this->halt("Link-ID == false, mssql_pconnect failed");       else           @mssql_select_db($this->Database, $this->Link_ID);     }   }   function free_result(){       mssql_free_result($this->Query_ID);       $this->Query_ID = 0;   }     function query($Query_String)   {         /* No empty queries, please, since PHP4 chokes on them. */     if ($Query_String == "")       /* The empty query string is passed on from the constructor,        * when calling the class without a query, e.g. in situations        * like these: '$db = new DB_Sql_Subclass;'        */       return 0;       if (!$this->Link_ID)         $this->connect();     #   printf("Debug: query = %sn", $Query_String);

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