这篇文章主要为大家分享了一个适用于初学者的简易PHP文件上传类,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
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
- class Test_Upload{
- 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']."文件上传成功";
- }else {
- $this->_messages[] = $filed['name']."文件上传失败";
- }
- }
- }
- }
- /**
- * 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){
- $this->_messages[] = "文件超出上传限制大小".$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。
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