php实现常用文件上传类的示例

废话不多说，直接上代码：<?php/***上传文件类*@param_path:服务器文件存放路径*@param_allow

废话不多说，直接上代码：

<?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
}

以上这篇php实现常用文件上传类的示例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。