php多文件上传代码二

<?php
class more_file_upload {
    const FILE_PATH = '../filehandle/uploadfile/';
    var $file_type;
    var $file_type_array;
    var $file_type_string;
    var $file_name;
    var $file_size;
    var $file_tmp_name;
    var $file_error;
    var $handledate;
    static $totalsize = 0;
    function __construct($file_name, $file_error, $file_size, $file_tmp_name, $file_type) {
        $this->handledate = date('m-d-Y');
        if (!empty($file_name)) {
            $this->file_name = $file_name;
            $this->file_error = $file_error;
            $this->file_size = $file_size;
            $this->file_tmp_name = $file_tmp_name;
            $this->file_type = $file_type;
            $this->file_type_array = array(
                'text/plain',
                'image/gif',
                'image/jpg',
                'text/html',
                'image/pjpeg',
                'image/png',
                'application/msword',
                'application/pdf'
            );
            $this->show_execute_message($this->file_error, $this->file_name, $this->file_type, $this->file_size);
        }
    }
    function __destruct() {
        $this->file_name = NULL;
        $this->file_error = NULL;
        $this->file_size = NULL;
        $this->file_tmp_name = NULL;
        $this->file_type = NULL;
        self::$totalsize = 0;
    }
    function show_execute_message($smfileerror, $smfilename, $smfiletype, $smfilesize) {
        if ($smfileerror > 0) {
            switch ($smfileerror) {
                case 1:
                    $smfilemessage = '<strong>文件超过服务器的约定大小！</strong>';
                    break;
                case 2:
                    $smfilemessage = '<strong>文件超过指定的文件大小！</strong>';
                    break;
                case 3:
                    $smfilemessage = '<strong>文件只上传了部分！</strong>';
                    break;
                case 4:
                    echo "$this->file_name " . '文件上传失败！<br/>';
                    break;
            }
            self::__destruct();
        } else {
            $smfiletypeflag = array_search($smfiletype, $this->file_type_array);
            if ($smfiletypeflag == false) {
                $smfilemessage = '<strong>文件类型不对，请核实！</strong>';
                self::__destruct();
            } else {
                $resflag = $this->move_file($this->file_tmp_name, $this->file_name);
                if ($resflag == 1) {
                    $smfilemessage = '文件上传成功！';
                    self::$totalsize+= intval($smfilesize);
                    self::__destruct();
                } else {
                    $smfilemessage = '<strong>文件上传失败！</strong>';
                    self::__destruct();
                }
            }
        }
        $smfilesize = $smfilesize / 1024;
        $smfilesizeformat = sprintf('%01d', $smfilesize);
        echo '<tr>
    <td align="left" >' . $smfilename . '</td>
               <td align="center" >' . $smfiletype . '</td>
               <td align="center" >' . $smfilesizeformat . '</td>
               <td align="center" >' . $smfilemessage . '</td> 
    </tr>';
    }
    function move_file($mvfiletmp, $mvfilename) { //移动文件
        $mvfilenamearr = explode('.', basename($mvfilename));
        $mvtime = mktime();
        $mvfilenamearr[0] = $this->rand_string(10) . "$mvtime";
        $mvfilename = implode('.', $mvfilenamearr);
        if (is_uploaded_file($mvfiletmp)) {
            $uploadfile = self::FILE_PATH . "$mvfilename";
            $result = move_uploaded_file($mvfiletmp, $uploadfile);
            return $result;
        }
    }
    function rand_string($len, $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789') { //指定范围内随机提取字符
        $string = '';
        for ($i = 0; $i < $len; $i++) {
            $pos = rand(0, strlen($chars) - 1);
            $string.= $chars{$pos};
        }
        return $string;
    }
}
echo '<table width="90%" border="1" cellpadding="0" align="center" cellspacing="2">';
echo '<tr>
        <td align="center" >文件名</td>
              <td align="center" >文件类型</td>
              <td align="center" >文件大小(KB)</td>
              <td align="center" >执行结果</td>
             </tr>';
for ($i = 0; $i < count($_FILES['userfile']); $i++) {
    $filename[$i] = $_FILES['userfile']['name'][$i];
    $fileerror[$i] = $_FILES['userfile']['error'][$i];
    $filesize[$i] = $_FILES['userfile']['size'][$i];
    $filetmpname[$i] = $_FILES['userfile']['tmp_name'][$i];
    $filetype[$i] = $_FILES['userfile']['type'][$i];
    $filetemp = new more_file_upload("$filename[$i]", "$fileerror[$i]", "$filesize[$i]", "$filetmpname[$i]", "$filetype[$i]");
}
echo '</table>';
echo '<a href="upfile.html">继续上传</a> <a href="index.php">返回首页</a>';
?>