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可整合到TP框架中的多文件上传类

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Release: 2016-06-07 11:35:33
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实现多文件上传




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以上为html页面的代码
可整合到TP框架中的多文件上传类
class UploadFile {

protected $user_post_file = array(); //用户上传的文件
protected $save_file_path; //存放用户上传文件的路径
protected $max_file_size; //文件最大尺寸
protected $last_error; //记录最后一次出错信息
//默认允许用户上传的文件类型
protected $allow_type = array('gif', 'jpg', 'png', 'zip', 'rar', 'txt', 'doc', 'pdf','docx');
protected $final_file_path; //最终保存的文件名
protected $save_info = array(); //返回一组有用信息,用于提示用户。

/**
* 构造函数
*/
function __construct($file, $path, $size = 2097152, $type = '') {
$this->user_post_file = $file;
if(!is_dir($path)){ //存储路径文件不存在就创建
mkdir($path);
chmod($path,0777);
}
$this->save_file_path = $path;
$this->max_file_size = $size; //如果用户不填写文件大小,则默认为2M.
if ($type != '')
$this->allow_type = $type;
}

/**
* 存储用户上传文件,检验合法性通过后,存储至指定位置。
*/
function upload() {

for ($i = 0; $i user_post_file['name']); $i++) {
//var_dump($this->user_post_file['name']);exit;
//如果当前文件上传功能,则执行下一步。
if ($this->user_post_file['error'][$i] == 0) {
//取当前文件名、临时文件名、大小、扩展名,后面将用到。
$name = $this->user_post_file['name'][$i];
$tmpname = $this->user_post_file['tmp_name'][$i];
$size = $this->user_post_file['size'][$i];
$mime_type = $this->user_post_file['type'][$i];
$type = $this->getFileExt($this->user_post_file['name'][$i]);
//检测当前上传文件大小是否合法。
if (!$this->checkSize($size)) {
$this->last_error = "The file size is too big. File name is: ".$name;
$this->halt($this->last_error);
continue;
}
//检测当前上传文件扩展名是否合法。
if (!$this->checkType($type)) {
$this->last_error = "Unallowable file type: .".$type." File name is: ".$name;
$this->halt($this->last_error);
continue;
}
//检测当前上传文件是否非法提交。
if(!is_uploaded_file($tmpname)) {
$this->last_error = "Invalid post file method. File name is: ".$name;
$this->halt($this->last_error);
continue;
}
//移动文件后,重命名文件用。
//$basename = $this->getBaseName($name, ".".$type);
//为防止文件名乱码
//$basename = iconv("UTF-8","gb2312", $basename);
//移动后的文件名
$saveas = rand(1,99999).time().".".$type;
//组合新文件名再存到指定目录下,格式:存储路径 + 文件名 + 时间 + 扩展名
$this->final_file_path = $this->save_file_path."/".$saveas;
if(!move_uploaded_file($tmpname, $this->final_file_path)) {
$this->last_error = $this->user_post_file['error'][$i];
$this->halt($this->last_error);
continue;
}
//存储当前文件的有关信息,以便其它程序调用。
$this->save_info[] = array("name" => $name, "type" => $type,
"mime_type" => $mime_type,
"size" => $size, "saveas" => $saveas,
"path" => $this->final_file_path);
}
}
return count($this->save_info); //返回上传成功的文件数目
}

/**
* 返回一些有用的信息,以便用于其它地方。
*/
function getSaveInfo() {
return $this->save_info;
}

/**
* 检测用户提交文件大小是否合法
*/
function checkSize($size) {
if ($size > $this->max_file_size) {
return false;
}
else {
return true;
}
}

/**
* 检测用户提交文件类型是否合法
*/
function checkType($extension) {
foreach ($this->allow_type as $type) {
if (strcasecmp($extension , $type) == 0)
return true;
}
return false;
}

/**
* 显示出错信息
*/
function halt($msg) {
printf(" %s
\n", $msg);
}

/**
* 取文件扩展名
*/
function getFileExt($filename) {
$stuff = pathinfo($filename);
return $stuff['extension'];
}
}
?>
多文件上传类文件
//echo 123;exit;
include("UploadFile.class.php");
if (!empty($_POST['submit'])) {
$upload = new UploadFile($_FILES['files'], 'data/upload/avatar');
//上传用户文件,返回int值,为上传成功的文件个数。
$num = $upload->upload();//返回上传成功的文件数目
if ($num != 0) {
echo "上传成功
";
echo $num."个文件上传成功";
}
else {
echo "上传失败
";
}
}
?>
业务逻辑
可整合到TP框架中的多文件上传类

附件 demo.zip ( 2.93 KB 下载:57 次 )

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