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
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。
