ThinkPHP 3.1.2 查询方式的一般使用1

	
	public function show(){
		echo "访问了index模块下的show方法!!";
		echo "欢迎你".$_GET['name'].'你的年龄是'.$_GET['age'];
		$m=M('user');
	
	    $id=$_GET['id'];
		$arr=$m->where("id=$id")->getField('username');
		//var_dump($arr);
		$this->assign('data',$arr);
		$this->display();
	}




	public function show(){
		echo "访问了index模块下的show方法!!";
		echo "欢迎你".$_GET['name'].'你的年龄是'.$_GET['age'];
		$m=M('user');
	
	    $id=$_GET['id'];
		//$arr=$m->where("id=$id")->getField('username');
		$arr=$m->where("id=$id")->find();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();
	}

	public function show(){
		echo "访问了index模块下的show方法!!";
		echo "欢迎你".$_GET['name'].'你的年龄是'.$_GET['age'];
		$m=M('user');
	
	    $id=$_GET['id'];
		//$arr=$m->where("id=$id")->getField('username');
		$arr=$m->where("id=$id")->select();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();
	}



	public function show(){
		echo "访问了index模块下的show方法!!";
		echo "欢迎你".$_GET['name'].'你的年龄是'.$_GET['age'];
		$m=M('user');
	
	    $id=$_GET['id'];
		//$arr=$m->where("id=$id")->getField('username');
		$arr=$m->where("sex=1 and username='gege'")->select();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();
	}


//select


	public function show(){
		echo "访问了index模块下的show方法!!";
		echo "欢迎你".$_GET['name'].'你的年龄是'.$_GET['age'];
		$m=M('user');
	
	    $username=$_GET['username'];
		//$arr=$m->where("id=$id")->getField('username');
		$arr=$m->where("sex=1 and username='$username'")->find();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();
	}


//select 2

	public function show(){
		echo "访问了index模块下的show方法!!";
		echo "欢迎你".$_GET['name'].'你的年龄是'.$_GET['age'];
		$m=M('user');
	
	    $username=$_GET['username'];
		
		$sex=$_GET['sex'];
		//$arr=$m->where("id=$id")->getField('username');
		//$arr=$m->where("sex=$sex and username='$username'")->find();
		
		$data['sex']=$sex;
		$data['username']="$username";
		$arr=$m->where($data)->find();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();
	}


//select or

	public function show(){
		echo "访问了index模块下的show方法!!";
		echo "欢迎你".$_GET['name'].'你的年龄是'.$_GET['age'];
		$m=M('user');
	
	    $username=$_GET['username'];
		
		$sex=$_GET['sex'];
		//$arr=$m->where("id=$id")->getField('username');
		//$arr=$m->where("sex=$sex and username='$username'")->find();
		
		//默认条件是and
		$data['sex']=$sex;
		$data['username']="$username";
		$data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();
	}

//select id>6的

	public function show(){
		echo "访问了index模块下的show方法!!";
		echo "欢迎你".$_GET['name'].'你的年龄是'.$_GET['age'];
		$m=M('user');
	     $id=$_GET['id'];
	    // $username=$_GET['username'];
		
		// $sex=$_GET['sex'];
		//$arr=$m->where("id=$id")->getField('username');
		//$arr=$m->where("sex=$sex and username='$username'")->find();
		
		//默认条件是and
		$data['id']=array('GT',6);
		// $data['sex']=$sex;
		// $data['username']="$username";
		// $data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();
	}

//select <=

//默认条件是and
		$data['id']=array('ELT',$id);
		// $data['sex']=$sex;
		// $data['username']="$username";
		// $data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);


//select like 

	//默认条件是and
		$data['username']=array('like',"%$username");
		// $data['sex']=$sex;
		// $data['username']="$username";
		// $data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();


//select not like

	$data['username']=array('notlike',"%$username");
		// $data['sex']=$sex;
		// $data['username']="$username";
		// $data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();
	}

//select like or

	$data['username']=array('like',array("%$username%","%2%"));
		// $data['sex']=$sex;
		// $data['username']="$username";
		// $data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();

//select like and

	$data['username']=array('like',array("%$username%","%2%"),'and');
		// $data['sex']=$sex;
		// $data['username']="$username";
		// $data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);

//select between 方式

	$data['id']=array('between',array($id1,$id2));
		
		// $data['sex']=$sex;
		// $data['username']="$username";
		// $data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();


//select not between

$data['id']=array('not between',array($id1,$id2));
		
		// $data['sex']=$sex;
		// $data['username']="$username";
		// $data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();

//select in 

	$data['id']=array('in ',array($id1,$id2));
		
		// $data['sex']=$sex;
		// $data['username']="$username";
		// $data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);
		$this->assign('data',$arr);
		$this->display();


//select not in

		$data['id']=array('not in ',array($id1,$id2));
		
		// $data['sex']=$sex;
		// $data['username']="$username";
		// $data['_logic']='or';
		$arr=$m->where($data)->select();
		var_dump($arr);
		$this->assign('data',$arr);