PHP文件上传封装

文件上传封装
<?php

include 'uploadone.php';
header("Content-type: text/html; charset=utf-8");
//封装获取文件名后缀
function getExt($fileName){
return strtolower(pathinfo($fileName,PATHINFO_EXTENSION));
}
//获取唯一文件名
function getUniname(){
return md5(uniqid(microtime(true),true));
}
//处理多文件上传数据
function getFiles(){

$i=0;
foreach ($_FILES as $file){
    if(is_string($file['name'])){
        $files[$i]=$file;
        $i++;
    }elseif (is_array($file['name'])){
        //循环把没一项的值拿出来合并
        foreach ($file['name'] as $key=>$val){
            $files[$i]['name']=$file['name'][$key];
            $files[$i]['tmp_name']=$file['tmp_name'][$key];
            $files[$i]['error']=$file['error'][$key];
            $files[$i]['size']=$file['size'][$key];
            $i++;
        }

    }

}
return $files;

}
function uploadFile($fileInfo,$path='uploads',$maxSize=1048576,$allowExt=array('jpg','jpeg','png','gif'),$flag=true){
if($fileInfo['error']===0){
//获取文件名后缀
$ext=getExt($fileInfo['name']);
//检测上传文件大小
if($fileInfo['size']>$maxSize) $res['msg']=$fileInfo['name'].'上传文件过大';
//检测允许上传文件的类型
if(!in_array($ext,$allowExt)) $res['msg']=$fileInfo['name'].'文件上传类型错误!!';
//检测是否是图片
//$flag=true;
if($flag){
if(@!getimagesize($fileInfo['tmp_name'])){
//var_dump(getimagesize($fileInfo['tmp_name']));
$res['msg']=$fileInfo['name'].'不是图片类型';
}
}
//检测文件是否是通过HTTP POST上传的
//is_uploaded_file — 判断文件是否是通过 HTTP POST 上传的
if(!is_uploaded_file($fileInfo['tmp_name'])) $res['msg']='文件不是通过HTTP POST上传的';
if(isset($res)) return $res;
$uniName=getUniname();
$path='./uploads';
if(!file_exists($path)){
mkdir($path,0777,true);
chomd($path,0777);
}
$destination=$path.'/'.$uniName.'.'.$ext;
if(!move_uploaded_file($fileInfo['tmp_name'],$destination)){
$res['msg']=$fileInfo['name'].'文件移动失败';
}
$res['msg']=$fileInfo['name'].'文件上传成功';
$res['dest']=$destination;
return $res;
}else{
switch($fileInfo['error']){
case 1:
$res['msg']='上传的文件超过PHP upload_max_fizesize的值';
break;
case 2:
$res['msg']='超过表单MAX_FIZE_SIZE限制大小';
break;
case 3:
$res['msg']= '文件部分被上传';
break;
case 4:
$res['msg']= '没有选择上传文件';
break;
case 6:
$res['msg']= '没有找到临时目录';
break;
case 7:
case 8:
$res['msg']= '系统错误';
break;
}
return $res;
}
}