tp上传单个图片

php代码(需要上传Upload类)

 if(!empty($_FILES["company_chop"]["name"])) {

                $upload = new \Think\Upload(); //实例化上传类
                $upload->savePath = 'chop/';
                $upload->rootPath = './Public/Uploads/';
                $upload->maxSize = 3145728;// 设置附件上传大小
                $upload->exts = array('jpg', 'gif', 'png', 'jpeg');
                $info = $upload->uploadOne($_FILES['company_chop']);
            }
            if(!$info){
                echo "<script>alert('添加失败');window.location='./';</script>";
                header("location:index");
            }else{
                $_POST["company_chop"]=$info['savepath'].$info['savename'];

            }

html代码

<form  action="{:U('Home/Org/add')}" method="post" id="submit_form" enctype="multipart/form-data">

<input type="file" multiple="" id="company_chop" name="company_chop" size="66%"   class="input-file">

</form>