php写一个操作mysql的类

首先是mysql方式

ut=$ut;
        $this->connect();

    }

    //数据库的链接
    function connect(){
        $link=mysql_connect($this->host,$this->name,$this->pass) or die ($this->error());
        mysql_select_db($this->table,$link) or die("没该数据库：".$this->table);
        mysql_query("SET NAMES '$this->ut'");
    }

    function query($sql, $type = '') {
        if(!($query = mysql_query($sql))) $this->show('Say:', $sql);
        return $query;
    }

    function show($message = '', $sql = '') {
        if(!$sql) echo $message;
        else echo $message.'
'.$sql;
    }

    function affected_rows() {
        return mysql_affected_rows();
    }

    function result($query, $row) {
        return mysql_result($query, $row);
    }

    function num_rows($query) {
        return @mysql_num_rows($query);
    }

    function num_fields($query) {
        return mysql_num_fields($query);
    }

    function free_result($query) {
        return mysql_free_result($query);
    }

    function insert_id() {
        return mysql_insert_id();
    }

    function fetch_row($query) {
        return mysql_fetch_row($query);
    }

    function version() {
        return mysql_get_server_info();
    }

    function close() {
        return mysql_close();
    }

    //向$table表中插入值
    function fn_insert($table,$name,$value){
        $this->query("insert into $table ($name) value ($value)");
    }
    //根据$id值删除表$table中的一条记录
    function fn_delete($table,$id,$value){
        $this->query("delete from $table where $id=$value");
        echo "id为". $id." 的记录被成功删除!";
    }
}

$db =  new ConnectionMySQL();

$db->fn_insert('test','id,name,sex',"'','hongtenzone','M'");
$db->fn_delete('test', 'id', 1);

?>

mysqli的方式：

每页多少条，0为不分页显示
    private $PageCount = 1; //分页显示->总共有多少条
    private $PageNum   = 1; //分页显示->总共有多少页
    private $PageNo    = 1; //分页显示->当前第几页
    private $PageKey   = 'page'; //分页url参数键
    private $PageStart = 0; //分页显示->当前从第几条开始返回
     
     
    private $Select;
    private $Rest;
     
    private $Result    = false;//结果集
     
    public $FormArray = array();
     
    public $Instr_ID  = 0;
    private $j =  0;
     
     
    public function Parameter($Loca, $Root, $Pass, $Base, $Code, $PreFix = ''){
        $this->LoaclUser = $Root;
        $this->LocalBase = $Base;
        $this->LocalCode = $Code;
        $this->LocalHost = $Loca;
        $this->LocalPass = $Pass;
        $this->PreFix    = $PreFix;
        return $this;
    }
    private function Connection( $Sql ){
        !function_exists(mysqli_connect) ? die('查询失败，无法加载mysqli扩展') : null;
        $this->Conn = @new mysqli( $this->LocalHost, $this->LoaclUser, $this->LocalPass, $this->LocalBase);
        $this->Error = mysqli_connect_errno() == 0 ? true : false;
        !$this->Error ? die('数据库连接错误，请检查数据库连接参数') : null;
        $this->Conn->query('SET NAMES ' . $this->LocalCode);
        $this->Rest = $this->Conn->query($Sql);
        $this->Err  = mysqli_error($this->Conn);
        $this->Instr_ID = mysqli_insert_id($this->Conn);
        $this->Rest->free_result;
        $this->Conn->close;
        $this -> FormArray = '';
        return $this;
    }
     
    public function null(){
        $this->PageSize  = 0;
        //$this->PageCount = 1;
        $this->PageStart = 1;
        $this->Field     = ' * ';
        $this->Select    = '';
        unset($this->Table, $this->Where,$this->Order, $this->Result);
    }
     
    public function Table( $TableName ) {//数据表
      $this -> null();
      $this->Table = '`' . $this->PreFix . $TableName . '`';
      return $this;
    }
     
    public function Field( $Array = '*' ) {//数据字段
      !empty( $this->Field ) ? $this->Field = '' : null;
      $Array = explode(',', $Array);
      foreach ( $Array as $field ) {
         $this->Field .= !$this->Start ? '`' . $field . '`' :  ', `' . $field . '`';
         $this->Start++;
      }
      $this->Start = 0;
      return $this;
    }
     
    public function Where( $Where ) {//条件
       $this->Where = ' where ' .$Where;
       return $this; 
    }
     
    public function Order( $Order ) {//排序
      $this->Order = ' order by ' . $Order;
      return $this;
    }
     
    public function pk( $key ) {//分页url参数键
      $this->PageKey = $key;
      return $this;
    }
     
    public function Page( $PageSize ) {//分页
      $this->PageSize = $PageSize;
      $this->PageNo   = $this->get( $this->PageKey );
      $this->PageNo   = empty( $this->PageNo ) || !isset( $this->PageNo ) || !is_numeric( $this->PageNo ) || $this->PageNo < 1 ? 1 : $this->PageNo;
      return $this;
    }
     
    public function post( $Key, $Filter = true ){
        return $Filter ? strip_tags($_POST[$Key]) : $_POST[$Key];
    }
     
    public function get( $Key, $Filter = true ){
        return $Filter ? strip_tags($_GET[$Key]) : $_GET[$Key];
    }
     
    public function Sel(){
        $this->Select = 'Select ' . $this->Field . ' from ' . $this->Table . $this->Where . $this->Order;
        $this->Connection( $this->Select );
        if ( $this->Rest->num_rows ) {
         while ( $Rs = $this->Rest->fetch_assoc() ) {
              $this->Result[] = $Rs;
          }
        }
       $DataBase = $this->Result;
       return empty($DataBase) ? false : $DataBase;
    }
     
    public function querys( $Sql = '', $Type = 'not', $biao = false ) {
        $this->Select = $Sql;
        $this->Connection( $this->Select );
        if ( $this->Rest->num_rows ) {
        if ( !$biao ) {
         while ( $Rs = $this->Rest->fetch_array() ) {
              $this->Result[] = !preg_match('/^\d+$/i', $Type) ?  $Rs : $Rs[ $Type ];
          }
        } else {
         while ( $Rs = $this->Rest->fetch_assoc() ) {
              $this->Result[] = $Rs;
          }
        }
        }
       $DataBase = $this->Result;
       return empty($DataBase) ? false : $DataBase;
         
    }
     
    public function executes( $Sql = '' ){
        $this->Connection( $Sql  );
        return $this->Rest;
    }
     
     
    public function exists( $T = '', $F = '', $W = ''){
        if ( empty( $F ) ) { return 0; }
        $cmd = empty( $W ) ? 'Select sum(' . $F . ') as `baiyinum` from `' . $this->PreFix . $T .'`' : 'Select sum(' . $F . ') as `baiyinum` from `' . $this->PreFix . $T .'` Where ' . $W;
        $this->Connection( $cmd );
        unset( $T, $F, $W, $cmd );
        $Rel =  $this->Rest->fetch_array();
        return round( $Rel['baiyinum'], 2 );
    }
     
     
    public function ExistsTo( $Bili = 10000, $T = '', $F = '', $W = ''){
        if ( empty( $F ) ) { return 0; }
        $cmd = empty( $W ) ? 'Select sum(' . $F . ') as `baiyinum` from `' . $this->PreFix . $T .'`' : 'Select sum(' . $F . ') as `baiyinum` from `' . $this->PreFix . $T .'` Where ' . $W;
        $this->Connection( $cmd );
        unset( $T, $F, $W, $cmd );
        $Rel =  $this->Rest->fetch_array();
        return round( $Rel['baiyinum'] * $Bili );
    }
     
     
    public function Select( $Type = true, $ListNum = 1 ){ //返回记录（数组形式， 返回条数）
      $this->Select = 'Select ' . $this->Field . ' from ' . $this->Table . $this->Where . $this->Order;
      if ( is_numeric( $ListNum ) ) { 
        if ( $this->PageSize > 0 ) {
            $this->Connection( $this->Select );//执行查询
            $this->PageCount =  $this->Rest->num_rows;//取得记录总数
            $this->PageNum   =  ceil($this->PageCount / $this->PageSize); //总共有多少页
            $this->PageNo    = $this->PageNo > $this->PageNum ? $this->PageNum : $this->PageNo;
            $this->PageStart = ( $this->PageNo - 1 ) * $this->PageSize;   //当前从第几条开始返回
            $this->Select   .= ' limit ' . $this->PageStart . ', ' .$this->PageSize; //重新构造sql语句
        } else {
            $this->Select   .= ' limit ' . $ListNum; //重新构造sql语句
        }
      } else {
            $this->Select   .= ' limit 1'; //重新构造sql语句
      }
      //echo $this->Select;
      $this->Connection( $this->Select );//再次执行查询
      if ( $this->Rest->num_rows ) {//如果记录存在
        if ( $Type ) {
          while ( $Rs = $this->Rest->fetch_array() ) {
              $this->Result[] = $Rs;
          }
        }else{
          while ( $Rs = $this->Rest->fetch_assoc() ) {
              $this->Result[] = $Rs;
          }
        }
      }
      if ( ( $ListNum == 1 or !is_numeric( $ListNum ) ) && !$this->PageSize) { $this->Result = $this->Result[0]; }
      $DataBase = $this->Result;
      return empty($DataBase) ? false : $DataBase;
    }
     
   public function Num() { //返回记录总数
     $this->Select = 'Select ' . $this->Field . ' from ' . $this->Table . $this->Where . $this->Order;
     $this->Connection( $this->Select );//执行查询
     return $this->Rest->num_rows;//取得记录总数
   }
    
   public function PageNav($NumNav = false ) {  //分页
     $Action = $this -> get('action');
     !empty( $Action ) or $Action =  'index';
     $Module = $this -> get('module');
     !empty( $Module ) or $Module = 'index';
     $NavUrl   = '/' . $Module . '/' . $Action . '/' . $this -> PageKey .'/';
     $NaIndex  = '/' . $Module . '/' . $Action;
     $PageHtml = "\n
";
     $PageHtml .= '' . $this->PageCount . '条记录        ' . $this->PageNo . '/' . $this->PageNum . '页            ';
     $this->PageNo <= 1 or $PageHtml .= "首页\nPageNo - 1) . "\">上一页\n";
    if ( $NumNav ) { $PageHtml .= $this->NumPage($NavUrl); }
    $this->PageNo >= $this->PageNum or $PageHtml .= "PageNo + 1) .  "\">下一页\nPageNum . "\">尾页\n";
    $PageHtml .= "
\n";
    return  $PageHtml; 
   }
    
   private function NumPage( $Can = '' ) { //数字分页
       $NumHtml = '';
       $First   = 1;
       $Last    = $this->PageNum;
       if ( $this->PageNum > 5 ) {
           if ( $this->PageNo < $this->PageNum ) {
              $First = $this->PageNo - 2;
              $Last  = $this->PageNo + 2;
           }else{
              $First = $this->PageNo - 4;
              $Last  = $this->PageNum;
           }
       }
       if ( $First < 1 ) { $First   = 1; $Last = $First + 4;}
       if ( $Last  > $this->PageNum ) { $First   = $this->PageNum - 4; $Last = $this->PageNum;}
       for( $i = $First; $i <= $Last; $i++) {
           $NumHtml .= $this->PageNo != $i ? "\n\t" . '' . $i . '' . "\n\t" : "\n\t" .'' . $i . '' . "\n\t";
       }
       unset($Can, $First, $i, $Last);
       return $NumHtml;
   }
    
   public function UserPage($NumNav = false, $PageName = 'index', $Mulu = 'user' ) {  //会员中心分页
     $NavUrl   = '/' . $Mulu . '/' . $PageName . '/' . $this->PageKey . '/';
     $PageHtml = "\n
";
     $PageHtml .= '' . $this->PageCount . '条记录        ' . $this->PageNo . '/' . $this->PageNum . '页            ';
     $this->PageNo <= 1 or $PageHtml .= "首页\nPageNo - 1) . "\">上一页\n";
    if ( $NumNav ) { $PageHtml .= $this->NumPage($NavUrl); }
    $this->PageNo >= $this->PageNum or $PageHtml .= "PageNo + 1) .  "\">下一页\nPageNum . "\">尾页\n";
    $PageHtml .= "
\n";
    return  $PageHtml; 
   }
    
    
   //表单处理开始
    
    //判断表单时候提交
    public function FormIs( $Keys = 'mm' ) {
        return $_POST[ $Keys ] == 1 ? true : false;
    }
     
    //post方式获取数据
    public function _post( $Keys = '', $TiHuan = '') {
        $Values = strip_tags( $_POST[ $Keys ] );
        $this->FormArray[$Keys] = empty( $Values ) ? $TiHuan : $Values;
        return  empty( $Values ) ? $TiHuan : $Values;
    }
     
    //get方法获取数据
    public function _get( $Keys = '', $TiHuan = '') {
        $Values = strip_tags( $_GET[ $Keys ] );
        return  empty( $Values ) ? $TiHuan : $Values;
    }
     
    //判断是否为数字并且不小于0
    public function IsNum( $Num = 0, $Mesg = '参数必须为数字' ) {
        if ( is_numeric( $Num ) && !empty( $Num ) && $Num >= 0 ) {
            return $Num;
        }else{
            die( $Mesg );
        }
    }
     
    //判断是否为数字并且不小于0返回True/False
    public function NumBer( $Num = 0) {
         return  is_numeric( $Num ) && !empty( $Num ) && $Num >= 0 ? true : false;
    }
     
    //检测相关数据似乎存在
    public function IsData($Types = true, $memg = '数据已经存在' ){
        $this->Connection('select ' . $this->Field . ' from ' . $this->Table . $this->Where);
        if ( $Types ){
            $this->Rest->num_rows > 0 ? die( $memg ) : null;
        } else {
            return $this->Rest->num_rows;
        }
    }
     
     
    //写入数据库记录
    public function into( $Mesg = '' ){
        !is_array( $this->FormArray ) ? die( $Mesg ) : null;
        $Sql = 'insert into ' . $this->Table . ' (`';
        $I   = 0;
        foreach ( $this->FormArray as $Key => $Val ){
            $Duan .= !$I ? $Key . '`' : ', `' . $Key . '`';
            if ( is_numeric( $Val ) ){
                $Vals .= !$I ? $Val : ', ' . $Val;
            }else{
                $Vals .= !$I ? '\'' . $Val . '\'' : ', \'' . $Val . '\'';
            }
            $I++;
        }
        $Sql .= $Duan . ') values (' . $Vals . ')';
         
        //@file_put_contents('1.sql', $Sql, FILE_APPEND);
         
        $this->Connection( $Sql );
        return !empty( $this->Err ) ? false : true;
    }
     
   //数组形式写入数据
   public function MsgBox( $Table = '', $Filed = array() ) {
       $this -> Table($Table);
       foreach( $Filed as $Key => $Val ) {
          $this -> FormArray[ $Key ] = $Val; 
       }
      return $this ->  Into('未取得数据');
   }
    
   //修改数据库记录
   public function Edit( $Array = array() ) {
       if ( empty( $Array ) ) { $Array = $this -> FormArray; }
       if ( !is_array( $Array ) || empty( $Array ) ) {
           return false;
       } else {
          $Sql = 'update ' . $this -> Table . ' set ';
          $I   = 0;
          $Sub = '';
          $Huan = array('-' => '[jian]', '+' => '[jia]', '*' => '[cheng]', '/' => '[chu]');
          $Zhan = array('[jian]' => '-', '[jia]' => '+', '[cheng]' => '*', '[chu]' => '/');
 
          foreach ( $Array as $Files => $Val ) {
              $Val  = !is_numeric( $Val ) && !preg_match('/\`\w+\`\s*(\+|\-|\*|\/)/i', $Val) ? '\'' . $Val . '\'' : $Val;
              foreach ( $Huan as $key => $val ){
                  $Val = str_replace($key, $val, $Val);
              }
              $duan = !$I ? '`' . $Files . '` = ' :  ', `' . $Files . '` = ';
              $Sub .= $duan . $Val;
              $I++;
          }
          $Sql .= $Sub . $this -> Where;
          foreach ( $Zhan as $Fan => $Hui ) {
              $Sql = str_replace($Fan, $Hui, $Sql);
          }
           
          //echo $Sql; die;
           
       $this -> Connection( $Sql );
       unset( $Array, $duan, $Fan, $Files, $Huan, $Hui, $I, $key, $Sql, $Sub, $Val, $Zhan, $val );
       return !empty( $this -> Err ) ? false : true;
      }
   }
     
   //删除数据库记录
   public function del(){
       $Sql = 'delete from ' . $this->Table . $this->Where;
       $this->Connection( $Sql );
       unset($Sql);
       return !empty( $this->Err ) ? false : true;
   }
    
   //表单处理结束
    
   //页面跳转
   public function Msg( $Text = '操作成功' ) {
       echo '';
       echo '';
 exit;
   }
    
   #取得系统当前时间
   public function Times(){
       return str_replace('-', '[jian]', date('Y-m-d H:i:s'));
   }
    
   #取得用户IP地址
    public function GetIP(){ 
      if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")) 
       $ip = getenv("HTTP_CLIENT_IP"); 
        else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")) 
       $ip = getenv("HTTP_X_FORWARDED_FOR"); 
        else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown")) 
       $ip = getenv("REMOTE_ADDR"); 
        else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown")) 
       $ip = $_SERVER['REMOTE_ADDR']; 
        else
       $ip = "unknown"; 
      return($ip); 
    } 
    
    
   //最后关闭数据库连接
   public function Close(){
       !is_object( $this -> Conn ) or mysqli_close( $this -> Conn );
   }
     
}