一個簡單的封裝數據庫類
<?phpclass opmysql{private $host = 'localhost'; //服務器地址private $name = 'root'; //登錄賬號private $pwd = ''; //登錄密碼private $dBase = ''; //數據庫名稱private $conn = ''; //數據庫鏈接資源private $result = ''; //結果集private $msg = ''; //返回結果private $fields; //返回字段private $fieldsNum = 0; //返回字段數private $rowsNum = 0; //返回結果數private $rowsRst = ''; //返回單條記錄的字段數組private $filesArray = array(); //返回字段數組private $rowsArray = array(); //返回結果數組//初始化類function __construct($host='',$name='',$pwd='',$dBase=''){if($host != '')$this->host = $host;if($name != '')$this->name = $name;if($pwd != '')$this->pwd = $pwd;if($dBase != '')$this->dBase = $dBase;$this->init_conn();}//鏈接數據庫function init_conn(){$this->conn=@mysql_connect($this->host,$this->name,$this->pwd);@mysql_select_db($this->dBase,$this->conn);mysql_query("set names gb2312");}//查詢結果function mysql_query_rst($sql){if($this->conn == ''){$this->init_conn();}$this->result = @mysql_query($sql,$this->conn);}
//取得字段數function getFieldsNum($sql){$this->mysql_query_rst($sql);$this->fieldsNum = @mysql_num_fields($this->result);}//取得查詢結果數function getRowsNum($sql){$this->mysql_query_rst($sql);if(mysql_errno() == 0){return @mysql_num_rows($this->result);}else{return '';}}//取得記錄數組(單條記錄)function getRowsRst($sql){$this->mysql_query_rst($sql);if(mysql_error() == 0){$this->rowsRst = mysql_fetch_array($this->result,MYSQL_ASSOC);return $this->rowsRst;}else{return '';}}//取得記錄數組(多條記錄)function getRowsArray($sql){$this->mysql_query_rst($sql);if(mysql_errno() == 0){while($row = mysql_fetch_array($this->result,MYSQL_ASSOC)) {$this->rowsArray[] = $row;}return $this->rowsArray;}else{return '';}}//更新、刪除、添加記錄數function uidRst($sql){if($this->conn == ''){$this->init_conn();}@mysql_query($sql);$this->rowsNum = @mysql_affected_rows();if(mysql_errno() == 0){return $this->rowsNum;}else{return '';}}//獲取對應的字段值function getFields($sql,$fields){$this->mysql_query_rst($sql);if(mysql_errno() == 0){if(mysql_num_rows($this->result) > 0){$tmpfld = @mysql_fetch_row($this->result);$this->fields = $tmpfld[$fields];}return $this->fields;}else{return '';}}//錯誤信息function msg_error(){if(mysql_errno() != 0) {$this->msg = mysql_error();}return $this->msg;}//釋放結果集function close_rst(){@mysql_free_result($this->result);$this->msg = '';$this->fieldsNum = 0;$this->rowsNum = 0;$this->filesArray = '';$this->rowsArray = '';}//關閉數據庫function close_conn(){$this->close_rst();@mysql_close($this->conn);$this->conn = '';}}$conn = new opmysql();?>
//取得字段數
function getFieldsNum($sql){
$this->mysql_query_rst($sql);
$this->fieldsNum = @mysql_num_fields($this->result);
}
//取得查詢結果數
function getRowsNum($sql){
$this->mysql_query_rst($sql);
if(mysql_errno() == 0){
return @mysql_num_rows($this->result);
}else{
return '';
}
}
//取得記錄數組(單條記錄)
function getRowsRst($sql){
$this->mysql_query_rst($sql);
if(mysql_error() == 0){
$this->rowsRst = mysql_fetch_array($this->result,MYSQL_ASSOC);
return $this->rowsRst;
}else{
return '';
}
}
//取得記錄數組(多條記錄)
function getRowsArray($sql){
$this->mysql_query_rst($sql);
if(mysql_errno() == 0){
while($row = mysql_fetch_array($this->result,MYSQL_ASSOC)) {
$this->rowsArray[] = $row;
}
return $this->rowsArray;
}else{
return '';
}
}
//更新、刪除、添加記錄數
function uidRst($sql){
if($this->conn == ''){
$this->init_conn();
}
@mysql_query($sql);
$this->rowsNum = @mysql_affected_rows();
if(mysql_errno() == 0){
return $this->rowsNum;
}else{
return '';
}
}
//獲取對應的字段值
function getFields($sql,$fields){
$this->mysql_query_rst($sql);
if(mysql_errno() == 0){
if(mysql_num_rows($this->result) > 0){
$tmpfld = @mysql_fetch_row($this->result);
$this->fields = $tmpfld[$fields];
}
return $this->fields;
}else{
return '';
}
}
//錯誤信息
function msg_error(){
if(mysql_errno() != 0) {
$this->msg = mysql_error();
}
return $this->msg;
}
//釋放結果集
function close_rst(){
@mysql_free_result($this->result);
$this->msg = '';
$this->fieldsNum = 0;
$this->rowsNum = 0;
$this->filesArray = '';
$this->rowsArray = '';
}
//關閉數據庫
function close_conn(){
$this->close_rst();
@mysql_close($this->conn);
$this->conn = '';
}
}
$conn = new opmysql();
?>