pfhwyigou/backend/server/UploadFile.php

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2018/2/27/027
 * Time: 15:31
 */

namespace backend\server;
use yii\web\UploadedFile;
use Yii;
//use yii\base\Model;
use yii\base\DynamicModel;
class UploadFile
{
//        public static function Radio($path,$model)
//        {
//            if(empty($path) || !is_object($model)) return false;
//            if(!is_dir($path)){
//                mkdir($path,0777,true);
//                chmod($path,0777);
//            }
//            $imgName = md5(uniqid()).'.'.$model->extension;
//            if($model->saveAs($path.$imgName) === true)
//            {
//                return $imgName;
//            }
//                return false;
//        }

    /*
     *  单张
     * */
    public static function InstanceImgName($name,$path)
    {

        if(empty($path)) return false;
        if(!is_dir($path)){
            mkdir($path,0777,true);
            chmod($path,0777);
        }
        $row = UploadedFile::getInstanceByName($name);
        if(is_object($row))
        {
            $validator = new \yii\validators\ImageValidator();
            $validator->extensions = ['png','jpg','jpeg'];
            $validator->maxSize = 1024*1024*2; //2M
            if(!$validator->validate($row,$error))return false;
            $name = md5(uniqid(microtime())).'.'.$row->extension;
            if($row->saveAs($path.$name) == true) return $name;
        }

        return false;
    }

        /*
         *  重写
         * */
        public static function InstanceImgName_v1($name,$path)
        {
                if(empty($path))    throw new \Exception('请添加图片路径');
                if(!is_dir($path)){
                    mkdir($path,0777,true);
                    chmod($path,0777);
                }
                $row = UploadedFile::getInstanceByName($name);
                if(is_object($row))
                {
                    $validator = new \yii\validators\ImageValidator();
                    switch ($path)
                    {
                        case Yii::$app->params['img_url']['push_lb'] :

                            $validator->extensions = ['png','jpg','jpeg'];
                            $validator->maxSize = 1024*1024*0.3; //2KB
                            break;
                        case Yii::$app->params['img_url']['push_lb']:
                            $validator->extensions = ['png','jpg','jpeg'];
                            $validator->maxSize = 1024*1024*0.3; //3KB
                            break;
                        default:
                            $validator->extensions = ['png','jpg','jpeg'];
                            $validator->maxSize = 1024*1024*2; //2M
                            break;
                    }

                    if(!$validator->validate($row,$error))
                    {
                        throw new \Exception($error);
                    }
                    $name = md5(uniqid(microtime())).'.'.$row->extension;
                    if($row->saveAs($path.$name) == true) return $name;
                }

                throw new \Exception('图片添加失败');
        }


        /*
         *  重写多张
         * */
        public static function InstancesImgName_v1($name,$path)
        {
            if(empty($path))    throw new \Exception('请添加图片路径');
            if(!is_dir($path)){
                mkdir($path,0777,true);
                chmod($path,0777);
            }
            $arr = [];
            $row = UploadedFile::getInstancesByName($name);

            switch ($path)
            {
                case Yii::$app->params['img_url']['news']: //资讯
                    $validator = new \yii\validators\ImageValidator();
                    $validator->extensions = ['png','jpg','jpeg'];
                    $validator->maxSize = 1024*1024*0.3;
                    $validator->maxFiles = 3;
                    if(empty($row))    throw new \Exception('请上传图片');
//                    $validator->notImage = '请上传图片';
                        break;
                default:
                    $validator = new \yii\validators\ImageValidator();
                    $validator->extensions = ['png','jpg','jpeg'];
                    $validator->maxSize = 1024*1024*0.5;
                    break;
            }

            foreach ($row as $k=>$v)
            {
                if(!$validator->validate($row[$k],$error))
                {
                    throw new \Exception($error);
                }
                $name = md5(uniqid(microtime())).'.'.$row[$k]->extension;
                if($row[$k]->saveAs($path.$name) == true)
                {
                    $arr[$k] = $name;
                }
            }
            if(!empty($arr)) return $arr;
            throw new \Exception('图片添加失败');
        }


    public static function InstancesImgName($name,$path)
    {
        $arr = [];
        $row = UploadedFile::getInstancesByName($name);
        if(empty($row[0])){
            return  '请上传图片';
        }
        $validator = new \yii\validators\ImageValidator();
        $validator->extensions = ['png','jpg','jpeg'];
        $validator->maxSize = 1024*1024*2; //2M
        foreach ($row as $k=>$v)
        {
            if(!is_object($row[$k])) return false;
            if(!$validator->validate($row[$k],$error))
            {
                return  $error;
            }
            $name = md5(uniqid(microtime())).'.'.$row[$k]->extension;
            if($row[$k]->saveAs($path.$name) == true)
            {
                $arr[$k] = $name;
            }
        }
        if(!empty($arr)) return $arr;
    }



        /*
         * 删除临时目录里面的图片
         * */
        public static function delImg($path,$name)
        {
            @unlink($path.$name);
        }


}