适用于初学者的简易PHP文件上传类

本文实例讲述了PHP多文件上传类，分享给大家供大家参考。具体如下：

PHP;"> protected $_uploaded = array();
protected $_destination;
protected $_max = 1024000;
protected $_messages = array();
protected $_permited = array(
'image/gif','image/jpeg','image/pjpeg','image/png'
);
protected $_renamed = false;

/**

@param mix $path
*/
public function __construct($path){

if (!is_dir($path) || !is_writable($path)){
  throw new Exception("文件名不可写，或者不是目录！");
}
$this->_destination = $path;
$this->_uploaded = $_FILES;

}
/**

移动文件
*/
public function move(){

$filed = current($this->_uploaded); 

$isOk = $this->checkError($filed['name'],$filed['error']);
//debug ok
if ($isOk){
  $sizeOk = $this->checkSize($filed['name'],$filed['size']);
  $typeOk = $this->checkType($filed['name'],$filed['type']);
  if ($sizeOk && $typeOk){

    $success = move_uploaded_file($filed['tmp_name'],$this->_destination.$filed['name']);

    if ($success){
      $this->_messages[] = $filed['name']."<a href="https://www.jb51.cc/tag/wenjian/" target="_blank" class="keywords">文件</a><a href="https://www.jb51.cc/tag/shangchuan/" target="_blank" class="keywords">上传</a>成功";
    }else {
      $this->_messages[] = $filed['name']."<a href="https://www.jb51.cc/tag/wenjian/" target="_blank" class="keywords">文件</a><a href="https://www.jb51.cc/tag/shangchuan/" target="_blank" class="keywords">上传</a>失败";
    }
  }

}

}
/**

查询messages数组内容
*/
public function getMessages(){
return $this->_messages;
}

/**

检测上传的文件大小
@param mix $string
@param int $size
*/
public function checkSize($filename,$size){

if ($size == 0){
  return false;
}else if ($size > $this->_max){
  $this->_messages[] = "<a href="https://www.jb51.cc/tag/wenjian/" target="_blank" class="keywords">文件</a>超出<a href="https://www.jb51.cc/tag/shangchuan/" target="_blank" class="keywords">上传</a>限制大小".$this->getMaxsize();
  return false;
}else { 
  return true;
}

}

/**

检测上传文件的类型
@param mix $filename
@param mix $type
*/
protected function checkType($filename,$type){
if (!in_array($type,$this->_permited)){
$this->_messages[] = "该文件类型是不被允许的上传类型";
return false;
}else {
return true;
}
}

/**

获取文件大小
*/
public function getMaxsize(){
return number_format($this->_max / 1024,1).'KB';
}

/**

检测上传错误
@param mix $filename
@param int $error
*/
public function checkError($filename,$error){
switch ($error){
case 0 : return true;
case 1 :
case 2 : $this->_messages[] = "文件过大！"; return true;
case 3 : $this->_messages[] = "错误上传文件！";return false;
case 4 : $this->_messages[] = "没有选择文件!"; return false;
default : $this->_messages[] = "系统错误!"; return false;
}
}
}
?>

希望本文所述对大家的PHP程序设计有所帮助。

原文链接：https://www.f2er.com/php/21029.html

适用于初学者的简易PHP文件上传类

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