How to implement multiple file uploads in PHP, _PHP tutorial

How to implement multi-file upload in PHP,

The example in this article describes how to implement multi-file upload in PHP. Share it with everyone for your reference. The specific implementation method is as follows:

<&#63;php
define('ROOT','D:/Program Files/www/test/');
class Files_Tool{
 protected static $allowExt=array('.jpg','.jpeg','.png','.gif','.bmp','.svg','.chm','.pdf','.zip','.rar','.tar','.gz','.bzip2','.ppt','.doc');
 public static $wrong=array();
 public static $path=array();
 protected static $error=array(
  0=>'文件上传失败,没有错误发生,文件上传成功',
  1=>'文件上传失败,上传的文件超过了 php.ini中upload_max_filesize 选项限制的值',
  2=>'文件上传失败,上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值',
  3=>'文件上传失败,文件只有部分被上传',
  4=>'文件上传失败,没有文件被上传',
  5=>'文件上传失败,未允许的后缀',
  6=>'文件上传失败,找不到临时文件夹.PHP 4.3.10 和 PHP 5.0.3 引进',
  7=>'文件上传失败,文件写入失败.PHP 5.1.0 引进',
  8=>'文件上传失败,未接收到表单域的NAME',
  9=>'文件上传失败,,错误未知'
 );
  public static function upload($name){
   //检测是否接收到表单域的NAME
   if(!isset($_FILES[$name])){
    self::$wrong[]=8;
    return false;
   }
   //3维数组简化成2维数组
   $files=array_shift($_FILES);
   //获取后缀
   $files=self::get_Ext($files);
   //处理文件次数
   $n=count($files['name']);
   for($i=0;$i<$n;$i++){
    //查看当前文件是否有错误信息,有则跳过当前文件,处理下个文件
    if($files['error'][$i]!=0){        
    self::$wrong[$i+1]=$files['error'][$i];
    continue;
    }
    //查看当前文件的后缀,是否允许,如果不允许,跳过当前文件
    if(!in_array($files['name'][$i],self::$allowExt)){
     self::$wrong[$i+1]=5;
     continue;
    }
    //路径
    $dir=self::time_Dir();
    //文件名
    $name=self::rand_Name();
    //后缀
    $ext=$files['name'][$i];
    //文件位置
    $path=$dir.$name.$ext;
    //移动临时文件,如果失败,跳过当前文件
    if(!move_uploaded_file($files['tmp_name'][$i],$path)){
    self::$wrong[$i]=9;
    continue;
    }
    //存入路径
    self::$path[$i+1]=strtr($path,array(ROOT=>''));
   }
   return self::$path;
  }
  //获取后缀的方法
  protected static function get_Ext($arr){
    if(!is_array($arr) || !isset($arr['name'])){return false;}
    foreach($arr['name'] as $k=>$v){
    $arr['name'][$k]=strtolower(strrchr($v,'.'));
    }
    return $arr;
  }
  //以日期生成路径
  protected static function time_Dir(){
   $dir=ROOT.'Data/images/'.date('Y/m/d/',time());
   if(!is_dir($dir)){
    mkdir($dir,0777,true);
   }
   return $dir;
  }
  //生成随机文件名
  protected static function rand_Name(){
   $str=str_shuffle('1234567890qwertyuiopasdfghjklzxcvbnm');
   $str=substr($str,0,6);
   return $str;
  }
  //错误接口
  public static function errors(){
   foreach(self::$wrong as $k=>$v){
    self::$wrong[$k]='第'.$k.'个'.self::$error[$k];
  }
  return self::$wrong;
  }
}

I hope this article will be helpful to everyone’s PHP programming design.

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