<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<html xmlns="http://www.phprm.com/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head> <body>
<form id="form1" name="form1" enctype="multipart/form-data" method="post" action="">
<label for="filefield"></label>
<input type="file" name="filefield" id="filefield" />
<input type="submit" name="button" id="button" value="文件开始上传" />
</form>
</body>
</html> <?
/* | @param: $dir -- 存放目录,最后加"/" [字串]
| @param: $file_var -- 表单变量 [字串]
| @param: $max_size -- 设定最大上传值,以k为单位. [整数/浮点数]
| @param: $type -- 限定后辍名(小写)，多个用"/"隔开,不限定则留空 [字串]
| @param: $name -- 上传后命名,留空则为原名,true为系统随机定名 [布林值]
| return: 上传后文件名
*/ function _asupfiles($dir, $file_var, $max_size='', $type='', $name=false)
{
if (!file_exists($dir)) showmsg("上传图片失败：上传目录 ".$dir." 不存在!",0);
if (!is_writable($dir))
{
showmsg("上传图片失败：上传目录 ".$dir." 无法写入!",0);
exit();
}
$upfile=& $_files["$file_var"];
$upfilename = $upfile['name'];
if (!($upfilename===''))
{
if (!is_uploaded_file($upfile['tmp_name']))
{
showmsg('上传图片失败：你选择的文件无法上传',0);
exit();
}
if ($max_size>0 && $upfile['size']/1024>$max_size)
{
showmsg("上传图片失败：文件大小不能超过 ".$max_size."kb",0);
exit();
}
$ext_name = strtolower(str_replace(".", "", strrchr($upfilename, ".")));
if (!($type==='') && strpos($type, $ext_name)===false)
{
showmsg("上传图片失败：只允许上传 ".$type." 的文件！",0);
exit();
}
($name==true)?$uploadname=time().mt_rand(100,999).".".$ext_name :'';
($name==false)?$uploadname=$upfilename:'';
!is_bool($name)?($uploadname=$name.".".$ext_name):'';
//$uploadname = $name ? md5(uniqid(rand())).".".$ext_name : $upfilename;
if (!move_uploaded_file($upfile['tmp_name'], $dir.$uploadname))
{
showmsg('上传图片失败：文件上传出错！',0);
exit();
}
return $uploadname;
}
else
{
return '';
}
}
?> |