文件上传代码 — 编程爱好者社区

沙发

5ibc [专家分：150] 发布于 2006-11-30 12:05:00

http://blog.programfan.com/blog.asp?blogid=3028

板凳

longlong16 [专家分：10670] 发布于 2006-11-30 17:47:00

假如提交页面有
<input type="file" name="imageurl"/>
提交处理页面：
if($imageurl!=""){
  //判断图片的类型，这里允许jpg bmp gif png类型
  if(($imageurl_type=="image/gif") || ($imageurl_type=="image/pjpeg")
||    ($imageurl_type=="image/x-png") || ($imageurl_type=="image/bmp")){
   //判断图片大小，不超过1m
   if($imageurl_size<=1000000){
                    //重新生成路径
             $dirurl="upload"."\\";
                     $datetime = date("YmdHis_");
                     $newname=$dirurl.$datetime.$imageurl_name;
                     copy($imageurl,$newname);
            }
    }
}
上面的newname是文件的路径可以保存到数据库里

3 楼

metome [专家分：0] 发布于 2006-12-07 14:43:00

<?php
    session_start();
    $picdir = 'upload/';
?>
<?php
if($_POST['upload']){
    $MAX_SIZE = 20000000;
    $FILE_MIMES = array('image/jpeg','image/jpg','image/gif','image/png','application/msword');
    $FILE_EXTS  = array('.zip','.jpg','.png','.gif','.wma','.rm','.wmv','.doc','.mpeg','.mp3','.avi');
    $DELETABLE  = true;
    $site_name = $_SERVER['HTTP_HOST'];
    $url_dir = "http://".$_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']);
    $url_this =  "http://".$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];
    $upload_dir = $picdir;
    $upload_url = $url_dir."/".$picdir;
    $message ="";
    function do_upload($upload_dir, $upload_url) {
        global $picdir;
        $temp_name = $_FILES['userfile']['tmp_name'];
        $file_name = $_FILES['userfile']['name'];
        $file_name = str_replace("\\","",$file_name);
        $file_name = str_replace("'","",$file_name);
        $file_path = $upload_dir.$file_name;
        $tm=date('Ymdhis');
        $tn=strstr($file_name,".");
        $tt=$tm.$tn;
        if ( $file_name =="") {
        $message = "文件名无效";
        return $message;
        }
        $result  =  move_uploaded_file($temp_name, $file_path);
        $message = ($result)?"$file_name 上传成功." :
                "上传文件中有错误.";
        rename($file_path,$picdir.$tt);
        $_SESSION['pic']=$tt;
        return $message;
    }
    if ($_FILES['userfile']) {
    $resource = fopen("log.txt","a");
    fwrite($resource,date("Ymd h:i:s")."UPLOAD - $_SERVER[REMOTE_ADDR]"
            .$_FILES['userfile']['name']." "
            .$_FILES['userfile']['type']."\n");
    fclose($resource);
    $file_type = $_FILES['userfile']['type'];
    $file_name = $_FILES['userfile']['name'];
    $file_ext = substr($file_name,strrpos($file_name,"."));
    if ( $_FILES['userfile']['size'] > $MAX_SIZE)
        $message = "文件超过 2MB.";
    else if (!in_array($file_type, $FILE_MIMES)
          && !in_array($file_ext, $FILE_EXTS) )
        $message = "对不起, $file_name($file_type) 不允许上传.";
    else
        {
            if($_SESSION['pic']){
                unlink($picdir.$_SESSION['pic']);
            }
            $message = do_upload($upload_dir, $upload_url);
        }
    }
    else if (!$_FILES['userfile']);
    else
        $message = "指定文件无效.";
}
?>

<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<link href="css/css.css" rel="stylesheet" type="text/css" />
<link href="admin/manage.css" rel="stylesheet" type="text/css" />
<style type="text/css">

</style></head>

<body>

   <table border="0" align="left" cellpadding="0" cellspacing="0" class="RightTable">
    <form name="upload" ENCTYPE="multipart/form-data" method="post"><tr>
    <td align="left" bgcolor="#FFFFFF" class="black_bold_b">上传文件：</td>
    <td align="left" bgcolor="#FFFFFF"> <input type="file"  name="userfile">
     <input type="submit" name="upload" value="上传"></td>
    <td align="left" bgcolor="#FFFFFF"><?php
    if($picl){
?>
<img src="<?=$picdir.$_SESSION['pic']?>" height="100" width="100" />
<?php
    }
?></td>
    </tr></form>

</table>

</body>
</html>

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