upload 封装类

<?php
/**
 * Created by PhpStorm.
 * User: shiyongzhe
 * Date: 2018/10/29
 * Time: 11:46 AM
 */

/**
 * 上传类
 * Created by PhpStorm.
 * User: shiyongzhe
 * Date: 2018/10/29
 * Time: 11:46 AM
 * Class Upload
 */
class Upload_SyzLocal
{
    private $path = '/www/wwwroot/ts.jycf.com/addons/ewei_shopv2/upload';
    private $allowtype = ['png','jpg','jpeg'];
    private $maxsize = 1000000;
    private $israndname = true;
    private $originName;
    private $tmpFileName;
    private $fileType;               //文件类型(文件后缀)
    private $fileSize;               //文件大小
    private $newFileName;
    private $errorNum;
    private $errorMess = '';

    public function upload($filename)
    {
        $return = true;
        $name     = $_FILES[$filename]['name'];
        $tmp_name = $_FILES[$filename]['tmp_name'];
        $size     = $_FILES[$filename]['size'];
        $error    = $_FILES[$filename]['error'];
        if(is_array($filename))
        {
            //TODO 多图上传
        }else{
            if($this->setFiles($name,$tmp_name,$size,$error)){
                if($this->checkFileSize() || $this->checkFileType())
                {
                    $this->setNewFileName();
                    if($this->copyFile())
                    {
                        return true;
                    }else{
                        $return = false;
                    }
                }else{
                    $return = false;
                }
            }else{
                $return = false;
            }
            if(!$return)
            {
                $this->errorMess = $this->getError();
            }
            return $return;
        }
    }

    /**
     * 获取上传后的文件名称
     * @param  void   没有参数
     * @return string 上传后，新文件的名称， 如果是多文件上传返回数组
     */
    public function getFileName(){
        return $this->newFileName;
    }

    /**
     * 上传失败后，调用该方法则返回，上传出错信息
     * @param  void   没有参数
     * @return string  返回上传文件出错的信息报告，如果是多文件上传返回数组
     */
    public function getErrorMsg(){
        return $this->errorMess;
    }

    /**
     * (设置出错信息)
     * User: shiyongzhe
     * Date: 2018/10/29
     * Time: 1:52 PM
     * @return string
     */
    protected function getError()
    {
        $str = '错误：';
        switch ($this->errorNum)
        {
            case 4: $str .= '文件没有上传';break;
            case 3: $str .= '文件只有部分上传';break;
            case 2: $str .= '上传文件的大小超过了HTML表单中MAX_FILE_SIZE选项指定的值'; break;
            case 1: $str .= '文件超过系统规定值';break;
            case -1: $str .= '未经允许类型';break;
            case -2: $str .= '文件字节过大';break;
            case -3: $str .= '上传失败';break;
            case -4: $str .= '建立存放目录失败';break;
            case -5: $str .= '必须指定上传路径';break;
            default:$str .= '未知错误！';break;
        }
        return $str;
    }

    /**
     * (赋值文件到指定的目录)
     * User: shiyongzhe
     * Date: 2018/10/29
     * Time: 1:38 PM
     * @return bool
     */
    protected function copyFile()
    {
        if(!$this->errorNum)
        {
            $path = rtrim($this->path,'/') . '/';
            $path .= $this->newFileName;
            if(@move_upload_file($this->tmpFileName,$path))
            {
                return true;
            }else{
                $this->setOption('errorNum',-3);
                return false;
            }
        }else{
            return false;
        }
    }

    /**
     * (设置心得文件名)
     * User: shiyongzhe
     * Date: 2018/10/29
     * Time: 1:30 PM
     */
    protected function setNewFileName()
    {
        if($this->israndname)
        {
            $this->setOption('newFileName',$this->proRandName());
        }else{
            $this->setOption('newFileName',$this->originName);
        }
    }

    /**
     * (检查文件格式是否正确)
     * User: shiyongzhe
     * Date: 2018/10/29
     * Time: 1:27 PM
     * @return bool
     */
    protected function checkFileType()
    {
        if(in_array(strtolower($this->fileType),$this->allowtype))
        {
            return true;
        }else{
            $this->setOption('errorNum',-1);
            return false;
        }
    }
    /**
     * (检查文件大小)
     * User: shiyongzhe
     * Date: 2018/10/29
     * Time: 1:25 PM
     * @return bool
     */
    protected function checkFileSize()
    {
        if($this->fileSize > $this->maxsize)
        {
            $this->setOption('errorNum',-2);
            return false;
        }else{
            return true;
        }
    }

    /**
     * (设置文件相关的内容)
     * User: shiyongzhe
     * Date: 2018/10/29
     * Time: 1:15 PM
     * @param string $name
     * @param string $tmp_name
     * @param int $size
     * @param int $error
     * @return bool
     */
    protected function setFiles($name = '',$tmp_name = '',$size = 0,$error = 0)
    {
        $this->setOption('errorNum',$error);
        if($error)
        {
            return false;
        }
        $this->setOption('originName',$name);
        $this->setOption('tmpFileName',$tmp_name);
        $aryStr = explode('.',$name);
        $this->setOption('fileType',strtolower($aryStr[count($aryStr) - 1]));
        $this->setOption('fileSize',$size);
        return true;
    }

    /**
     * (设置某个属性值)
     * User: shiyongzhe
     * Date: 2018/10/29
     * Time: 1:09 PM
     * @param $key
     * @param $val
     */
    protected function setOption($key,$val)
    {
        $this->$key = $val;
    }

    /**
     * (随机文件名)
     * User: shiyongzhe
     * Date: 2018/10/29
     * Time: 1:32 PM
     * @return string
     */
    protected function proRandName()
    {
        $fileName = date('YmdHis').'_'.rand(1000,9999);
        return $fileName . '.' . $this->fileType;
    }


}

后期随时修改完善  暂时只写了单个文件上传   多个文件后期加上   这些算是自己的技术积累