简单的php文件上传。一个文件搞定。
有staff需要临时上传文件作中转，于是就写了个uploads.php 这个来方便他上传下载。
把下面代码另存为uploads.php 然后放在www目录即可
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8" /><meta name="author" content="xyl" /><title>简易文件上传</title></head><style type="text/css"></style><body><form enctype="multipart/form-data" action="" method="post">请选择文件： <br><input name="upload_file" type="file"><br><input type="submit" value="上传文件"></form><br /><br /><br /><br /><?/* * uploads.php * @name: simeple php file upload && download tool * @author: rainysia * @copyright: Copyright (c) 2006 - 2013, BTROOT, Inc. * @version: Version 1.0 * @createTime: 2013-09-17 23:31:02 * @lastChange: 2013-10-17 15:55:40 */function file_list($dir,$pattern=""){$arr=array();$dir_handle=opendir($dir);if($dir_handle){while(($file=readdir($dir_handle))!==false){if($file==='.' || $file==='..'){continue;}$tmp=realpath($dir.'/'.$file);if(is_dir($tmp)){$retArr=file_list($tmp,$pattern);if(!empty($retArr)){$arr[]=$retArr;}} else {if($pattern==="" || preg_match($pattern,$tmp)){$arr[]=$tmp;}}}closedir($dir_handle);}return $arr;}$d_root = $_SERVER['DOCUMENT_ROOT'];$store_dir = "$d_root/uploads/";// 上传文件的储存位置if (!is_dir($store_dir)) {mkdir($store_dir,0777,true);}$file_arr = file_list($store_dir);foreach ($file_arr as $v=>$k) {$d_root_no = strlen($d_root);$l = substr($k,$d_root_no);echo $v.'号文件下载地址为: <a class="download_url" style="color:#01BCC8;text-decoration:none;font-size:16px;font-weight:bold;" href="'.$l.'">'.$_SERVER['SERVER_ADDR'].$l.'<a/><br />';}$upload_file=isset($_FILES['upload_file']['tmp_name'])?$_FILES['upload_file']['tmp_name']:'';$upload_file_name=isset($_FILES['upload_file']['name'])?$_FILES['upload_file']['name']:'';$upload_file_size=isset($_FILES['upload_file']['size'])?$_FILES['upload_file']['size']:'';if($upload_file){$file_size_max = 1000*1000*200;// 200M限制文件上传最大容量(bytes)if (!is_dir($store_dir)) {mkdir($store_dir,0777,true);}$accept_overwrite = 1;//是否允许覆盖相同文件// 检查文件大小if ($upload_file_size > $file_size_max) {echo "对不起，你的文件容量大于规定";exit;}// 检查读写文件if (file_exists($store_dir . $upload_file_name) && !$accept_overwrite) {echo "存在相同文件名的文件";exit;}//复制文件到指定目录if (!move_uploaded_file($upload_file,$store_dir.$upload_file_name)) {echo "复制文件失败";exit;}}if (isset($_FILES['upload_file'])) {echo "<p>你上传了文件:";echo isset($_FILES['upload_file']['name'])?$_FILES['upload_file']['name']:'';echo "<br>";//客户端机器文件的原名称。echo "文件的 MIME 类型为:";echo isset($_FILES['upload_file']['type'])?$_FILES['upload_file']['type']:'';//文件的 MIME 类型，需要浏览器提供该信息的支持，例如“image/gif”。echo "<br>";echo "上传文件大小:";echo isset($_FILES['upload_file']['size'])?$_FILES['upload_file']['size']:'';//已上传文件的大小，单位为字节。echo "<br>";echo "文件上传后被临时储存为:";echo isset($_FILES['upload_file']['tmp_name'])?$_FILES['upload_file']['tmp_name']:'';//文件被上传后在服务端储存的临时文件名。$erroe = isset($_FILES['upload_file']['error'])?$_FILES['upload_file']['error']:'';switch($erroe){case 0:echo "上传成功"; break;case 1:echo "上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值."; break;case 2:echo "上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值。"; break;case 3:echo "文件只有部分被上传"; break;case 4:echo "没有文件被上传"; break;case 6:echo "没有缓存目录"; break;case 7:echo "上传目录不可读"; break;case 8:echo "上传停止"; break;default :echo "没有选择上传文件"; break;}echo "<script language=JavaScript>location.replace(location.href);</script>";}?></body></html>