php上传类

来源：互联网发布：pc装机软件编辑：程序博客网时间：2024/06/13 23:59
<?php/** +-----------------------------------------------------------------------------  * 文件上传类 +----------------------------------------------------------------------------- * @author Administrator +----------------------------------------------------------------------------- */  class FileUpload{    private $filepath;   //保存路径  private $allowtype=array('gif','jpg','jpeg','png','txt');  private $maxsize=1000000;   //最大允许上传大小  private $israndname=true;  //是否随机  private $orginame;  //原始文件名  private $tmpname;   //临时文件名  private $newname;   //新文件名  private $filetype;  //文件类型   private $filesize;  //文件大小  private $errornum=''; //错误号  private $errormsg;  //错误信息/** +------------------------------------------------------------------------------  *构造函数 +------------------------------------------------------------------------------  * @param string $savepath   保存路径 * @param string $allowtype  允许类型 * @param string $maxsize    允许大小 *  +------------------------------------------------------------------------------ */    function  __construct($option=array()){   foreach ($option as $key=>$value){       if (!in_array($key,get_class_vars(get_class($this)))){    continue;    }   $this->setOption($key, $value);    }  }  function uploadfile($field) {    $return=true;  if (!$this->CheckPath()) {  $this->errormsg=$this->geterrorNum();  return false;  }  $name=$_FILES[$field]['name'];  $tmpname=$_FILES[$field]['tmp_name'];  $filesize=$_FILES[$field]['size'];  $error=$_FILES[$field]['error'];    if (is_array($name)) {   $errors=array();    for ($i=0;$i<count($name);$i++){    if ($this->getFile($name[$i],$tmpname[$i],$filesize[$i],$errors[$i])) {    if (!$this->CheckSize() && !$this->CheckType()) {    $errors=$this->getErrorNum();    return false;       }              }else{       $errors=$this->getErrorNum();       return false;    }    if (!$return) {    $this->getFile();    }    }    if ($return) {    $fileNames=array();    for ($i=0;$i<count($name);$i++){    if ($this->getFile($name[$i], $tmpname[$i], $filesize[$i], $filesize[$i])) {    $this->SetFileName();    if (!$this->MoveFile()) {    $errors[]=$this->getErrorNum();    $return=false;    }else{    $fileNames[]=$this->getNewName();    }    }        }    $this->newname=$fileNames;    }      $this->errormsg=$errors;      return $return;        }else{      if($this->getFile($name,$tmpname,filesize,$error)){         if(!$this->CheckSize()){         return false;         }         if(!$this->CheckType()){         return false;         }          $this->SetFileName();         if ($this->MoveFile()) {         return true;         }       }else{     return false;     }           if (!$return) {     $this->setOption('ErrorNum', 0);     $this->errormsg=$this->geterrorNum();     }    return $return;     }  }  /**   +------------------------------------------------------------------------   *设置类属性值函数   +------------------------------------------------------------------------   * @param mix $key   * @param mix $value   */  private function setOption($key,$value){  $key=strtolower($key);  $this->$key=$value;  }  /**   +---------------------------------------------------------------------------    * 获取文件变量参数函数   +---------------------------------------------------------------------------   * @param string $name   * @param string $tmp_name   * @param number $size   * @param number $error   */  private function getFile($name,$tmpname,$filetype,$filesize,$error=0){    $this->setOption('TmpName', $tmpname);  $this->setOption('OrgiName', $name);  $arrstr=explode('.', $name);  $this->setOption('FileType', $arrstr[count($arrstr)-1]);    $this->setOption('FileSize', $filesize);  return true;  }  /**   +-------------------------------------------------------------------------   * 检查上传路径函数   +-------------------------------------------------------------------------   * @return boolean   */  private function CheckPath(){  if(empty($this->filepath)){  $this->setOption('ErrorNum', -5);  return false;  }  if (!file_exists($this->filepath)||!is_writable($this->filepath)) {    if (!@mkdir($this->filepath,0755)) {      $this->setOption('ErrorNum',-4);      return false;    }  }  return true;  }  private function Is_Http_Post(){  if (!is_uploaded_file($this->tmpname)) {     $this->setOption('ErrorNum',-6);     return false;  }else{  return true;  }  }  /**   +--------------------------------------------------------------------    *检查文件尺寸函数   +--------------------------------------------------------------------   * @return boolean   */  private function CheckSize(){  if ($this->filesize>$this->maxsize) {  $this->setOption('ErrorNum', -2);  return false;  }else{  return true;  }  }  /**   +---------------------------------------------------------------    * 检查文件类型函数   +---------------------------------------------------------------    * @return boolean   */  private function CheckType(){  if (in_array($this->filetype, $this->allowtype)) {  return true;  }else{  $this->setOption('ErrorNum', -1);  return false;  }  }  private function SetFileName(){  if ($this->israndname) {  $this->setOption('NewName', $this->RandName());  }else{  $this->setOption('NewName',$this->orginame);  }   }  /**   +-----------------------------------------------------------------    * 获取新文件名   +------------------------------------------------------------------    */  public function getNewName() {  return $this->newname;  }  private function RandName(){  $rule=date("YmdHis").rand(0, 999);  return $rule.'.'.$this->filetype;  }  private function MoveFile(){  if ($this->errornum) {  $filepath=rtrim($this->filaepath,'/').'/';  $filepath.=$this->newname;  if (@move_uploaded_file($this->tmpname,$filepath)) {  return true;   }else{   $this->errormsg=$this->setOption('ErrorNum',-3 );   }  }else{  return false;  }  }  /**   +----------------------------------------------------------------    * 错误信息函数   +----------------------------------------------------------------   * @return string   */   function getErrorNum() {  $erstr="上传文件<font color='red'>{$this->orginame}</font>出错";  switch ($this->errornum) {  case 4:   $erstr.="没有文件被上传";      break;  case 3:   $erstr.="文件只被部分上传";  break;  case 2:   $erstr.="上传文件超过了HTML表单MAX_FILE_SIZE指定的值";  break;  case 1:   $erstr.="上传文件超过了php.ini配置文件中upload_max_filesize的值";  break;  case 0:   $erstr="上传{$this->orginame}成功";      break;  case -1:   $erstr="未允许的类型";      break;  case -2:   $erstr.="文件过大，不能超过{$this->maxsize}个字节";       break;  case -3:   $erstr.="上传失败";      break;  case -4:   $erstr="创建上传目录失败，请重新指定上传目录";      break;  case -5:   $erstr="未指定上传路径";      break;  case -6:   $erstr="非法操作";      break;                     default:   $erstr.="未知错误";        }  return  $erstr;  }  }?>
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