upload.php

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<?php
//----------------------------------------------------------------------
//转发时请保留此声明信息,这段声明不并会影响你的速度!
//*******************    IEB上传类 v1.1   *********************************
//作者:卢韦华
//网站:http://www.iebsoft.cn
//电子邮件:[e-mail]
//版权声明:版权所有,源代码公开,各种用途均可免费使用,但是修改后必须把修改后的文件
//发送一份给作者.
//***********************************************************************
//

class ieb_upload{
var $FormName; //文件域名称
var $Directroy; //上传至目录
var $MaxSize; //最大上传大小
var $CanUpload; //是否可以上传
var $doUpFile; //上传的文件名
var $sm_File; //缩略图名称
var $Error;   //错误参数

function ieb_upload($formName='', $dirPath='', $maxSize=2097152) //(1024*2)*1024=2097152 就是 2M
{
   global $FormName, $Directroy, $MaxSize, $CanUpload, $Error, $doUpFile, $sm_File;
   //初始化各种参数
   $FormName = $formName;
   $MaxSize = $maxSize;
   $CanUpload = true;
   $doUpFile = '';
   $sm_File = '';
   $Error = 0;
  
   if ($formName == ''){
    $CanUpload = false;
    $Error = 1;
    break;
    }
  
   if ($dirPath == ''){
    $Directroy = $dirPath;
   }else{
    $Directroy = $dirPath.'/';
   }
}

//检查文件是否存在
function scanFile()
{
   global $FormName, $Error, $CanUpload;
  
   if ($CanUpload){
  
    $scan = is_readable($_FILES[$FormName]['name']);
   
    if ($scan){   
     $Error = 2;
    }
   
    return $scan;
   }
}


//获取文件大小
function getSize($format = 'B')
{
   global $FormName, $Error, $CanUpload;
  
   if ($CanUpload){
  
    if ($_FILES[$FormName]['size'] == 0){
     $Error = 3;
     $CanUpload = false;
    }
   
    switch ($format){
    case 'B':
    return $_FILES[$FormName]['size'];
    break;
   
    case 'M':
    return ($_FILES[$FormName]['size'])/(1024*1024);
    }
   
   }
}

//获取文件类型
function getExt()
{
   global $FormName, $Error, $CanUpload;
  
   if ($CanUpload){
    $ext=$_FILES[$FormName]['name'];
    $extStr=explode('.',$ext);
    $count=count($extStr)-1;
   }
   return $extStr[$count];
}

//获取文件名称
function getName()
{
   global $FormName, $CanUpload;
  
   if ($CanUpload){
    return $_FILES[$FormName]['name'];
   }
}

//新建文件名
function newName()
{
   global $CanUpload, $FormName;
  
   if ($CanUpload){
    $FullName=$_FILES[$FormName]['name'];
    $extStr=explode('.',$FullName);
    $count=count($extStr)-1;
    $ext = $extStr[$count];
   
    return date('YmdHis').rand(0,9).'.'.$ext;
   }
}

//上传文件
function upload($fileName = '')
{
   global $FormName, $Directroy, $CanUpload, $Error, $doUpFile;
  
   if ($CanUpload){
    if ($_FILES[$FormName]['size'] == 0){
     $Error = 3;
     $CanUpload = false;
     return $Error;
     break;
    }
   }
  
   if($CanUpload){
  
    if ($fileName == ''){
     $fileName = $_FILES[$FormName]['name'];
    }
       
   $doUpload=@copy($_FILES[$FormName]['tmp_name'], $Directroy.$fileName);
   
    if($doUpload)
    {
     $doUpFile = $fileName;
     chmod($Directroy.$fileName, 0777);
     return true;
    }else{
     $Error = 4;
     return $Error;
    }
   }
}

//创建图片缩略图
function thumb($dscChar='',$width=150,$height=113)
{
   global $CanUpload, $Error, $Directroy, $doUpFile, $sm_File;
  
   if ($CanUpload && $doUpFile != ''){
    $srcFile = $doUpFile;
   
    if ($dscChar == ''){
     $dscChar = 'sm_';
    }
   
    $dscFile = $Directroy.$dscChar.$srcFile;
    $data = getimagesize($Directroy.$srcFile,&$info);
   
    switch ($data[2]) {
    case 1:
    $im = @imagecreatefromgif($Directroy.$srcFile);
    break;
   
    case 2:
    $im = @imagecreatefromjpeg($Directroy.$srcFile);
    break;
   
    case 3:
    $im = @imagecreatefrompng($Directroy.$srcFile);
    break;
    }
   
    $srcW=imagesx($im);
    $srcH=imagesy($im);
    $ni=imagecreatetruecolor($width,$height);
    imagecopyresized($ni,$im,0,0,0,0,$width,$height,$srcW,$srcH);
    $cr = imagejpeg($ni,$dscFile);
    chmod($dscFile, 0777);
   
    if ($cr){
     $sm_File = $dscFile;
     return true;
    }else{
     $Error = 5;
     return $Error;
    }
   }
}

//显示错误参数
function Err(){
   global $Error;
   return $Error;
}

//上传后的文件名
function UpFile(){
   global $doUpFile, $Error;
   if ($doUpFile != ''){
    return $doUpFile;
   }else{
    $Error = 6;
   }
}

//上传文件的路径
function filePath(){
   global $Directroy, $doUpFile, $Error;
   if ($doUpFile != ''){
    return $Directroy.$doUpFile;
   }else{
    $Error = 6;
   }  
}

//缩略图文件名称
function thumbMap(){
   global $sm_File, $Error;
   if ($sm_File != ''){
    return $sm_File;
   }else{
    $Error = 6;
   }
}

//显示版本信息
function ieb_version(){
   return 'IEB_UPLOAD CLASS Ver 1.1';
}
}
?>