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php实现常用文件上传类,

php实现常用文件上传类,<?php/** * 上传文件类 * @param _path : 服务器文件存放路径 * @param _allowType : 允许上传的文件类型和所对应的MIME ...

php实现常用文件上传类,

<?php
/**
* 上传文件类
* @param _path : 服务器文件存放路径
* @param _allowType : 允许上传的文件类型和所对应的MIME
* @param _file : 上传的文件信息
*/
class Upload{

private $_path;
private $_allowType;
private $_file;
/**
* 构造函数
* @param string : 服务器上存放上传文件的路径
*/
function __construct( $path = ‘‘ )
{
$this->_path = $path;
$this->_allowType = array(
// images
‘bmp‘ => ‘image/x-ms-bmp‘,
‘jpg‘ => ‘image/jpeg‘,
‘jpeg‘ => ‘image/jpeg‘,
‘gif‘ => ‘image/gif‘,
‘png‘ => ‘image/png‘,
‘tif‘ => ‘image/tiff‘,
‘tiff‘ => ‘image/tiff‘,
‘tga‘ => ‘image/x-targa‘,
‘psd‘ => ‘image/vnd.adobe.photoshop‘,
//文本
‘txt‘ => ‘text/plain‘,
‘php‘ => ‘text/x-php‘,
‘html‘ => ‘text/html‘,
‘htm‘ => ‘text/html‘,
‘js‘ => ‘text/javascript‘,
‘css‘ => ‘text/css‘,
‘rtf‘ => ‘text/rtf‘,
‘rtfd‘ => ‘text/rtfd‘,
‘py‘ => ‘text/x-python‘,
‘java‘ => ‘text/x-java-source‘,
‘rb‘ => ‘text/x-ruby‘,
‘sh‘ => ‘text/x-shellscript‘,
‘pl‘ => ‘text/x-perl‘,
‘sql‘ => ‘text/x-sql‘,
//应用
‘exe‘ => ‘application/octet-stream‘,
‘doc‘ => ‘application/vnd.ms-word‘,
‘docx‘ => ‘application/vnd.ms-word‘,
‘xls‘ => ‘application/vnd.ms-excel‘,
‘ppt‘ => ‘application/vnd.ms-powerpoint‘,
‘pps‘ => ‘application/vnd.ms-powerpoint‘,
‘pdf‘ => ‘application/pdf‘,
‘xml‘ => ‘application/xml‘,
//音频
‘mp3‘ => ‘audio/mpeg‘,
‘mid‘ => ‘audio/midi‘,
‘ogg‘ => ‘audio/ogg‘,
‘mp4a‘ => ‘audio/mp4‘,
‘wav‘ => ‘audio/wav‘,
‘wma‘ => ‘audio/x-ms-wma‘,
//视频
‘avi‘ => ‘video/x-msvideo‘,
‘dv‘ => ‘video/x-dv‘,
‘mp4‘ => ‘video/mp4‘,
‘mpeg‘ => ‘video/mpeg‘,
‘mpg‘ => ‘video/mpeg‘,
‘mov‘ => ‘video/quicktime‘,
‘wm‘ => ‘video/x-ms-wmv‘,
‘flv‘ => ‘video/x-flv‘,
‘mkv‘ => ‘video/x-matroska‘
);
}
/**
* 上传函数
* @param string : 表单元素的name 值
* @return [type]
*/
public function upload( $txtName = ‘‘ )
{
$this->_file = $_FILES[$txtName];
if( $this->_file[‘error‘] == 0){
$fileType = end( explode(‘.‘, $this->_file[‘name‘] ));
$allowType = array();
foreach( $this->_allowType as $item=>$value ){
$allowType[] = $item;
}
if( !in_array($fileType, $allowType)){
die(‘上传的文件格式不正确!‘);
}else{
if(move_uploaded_file($this->file[‘tmp_name‘], ($this->path).$this->file[‘name‘]))
{
echo "<script>alert(‘上传成功!‘)</script>";
}
else
{
echo "<script>alert(‘上传失败!‘);</script>";
}
}

}else{
//没有正确上传
switch ($this->file[‘error‘]){
case 1:
die(‘文件大小超过系统限制。‘);
break;
case 2:
die(‘文件大小超过预定义限制。‘);
break;
case 3:
die(‘文件为完全上传。‘);
break;
case 4:
die(‘未上传任何文件。‘);
break;
default:
die(‘上传出错‘);
break;
}
}
}
//end upload
}

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