ThinkPHP框架九上传文件和生成缩略图

文件上传

用到的知识：

1.文件上传的时候要设置表单的enctype属性 如下：

'2\$_FILE[名字][]用来接收文件的信息

第二维的字段

name

size

error

type

tmp_name

3、move_uploaded_file (临时文件，目标文件)

tp自带了上传文件的类，位置：Think/Upload.class.php

$goods = M('goods');
		if(IS_POST){
			if($data = $goods->create()){
				if($_FILES['goods_img']['error'] == 0){
					$config = array(
						'rootPath'      =>  './Application/Uploads/', //保存根路径
					);
				$upload = new \Think\Upload($config);
				$info = $upload->uploadOne($_FILES['goods_img']);//  上传的方法  只上传一张 返回的是上传的文件的额信息
				 $data['goods_big_img'] = $info['savepath'].$info['savename'];
				
				if($goods->add($data)){
					$this->success('tianjiacehgngong','showlist',3);
				}else{
					$this->error('tianjaishibai');
				}
			}else{
				var_dump($upload->getError);
			}
		  }

		}

生成缩略图

缩略图类存放的位置 Think\Image.class.php

if(IS_POST){
			if($data = $goods->create()){
				if($_FILES['goods_img']['error'] == 0){
					$config = array(
						'rootPath'      =>  './Application/Uploads/', //保存根路径
					);
				$upload = new \Think\Upload($config);
				$info = $upload->uploadOne($_FILES['goods_img']);//  上传的方法  只上传一张 返回的是上传的文件的额信息
				 $data['goods_big_img'] = $info['savepath'].$info['savename'];
				//生成缩略图
				 $img = new \Think\Image();
				 //1.打开图片
				 $big_img = $upload->rootPath.$data['goods_big_img'];   //获得大图片的绝对路径
				 $img->open($big_img);  //打开大图片
				 //2、生成缩略图
				 $img->thumb(200,300,2);  //设定宽高和怎样缩略
				 //3、保存
				 $small_img = $upload->rootPath.$info['savepath'].'small'.$info['savename'];
				 $img->save($small_img);
				 $data['goods_small_img'] = $small_img;
				if($goods->add($data)){
					$this->success('tianjiacehgngong','showlist',3);
				}else{
					$this->error('tianjaishibai');
				}
			}else{
				var_dump($upload->getError);
			}
		  }