上传文件时出现问题 [英] problem when uploading file

问题描述

我有表格，我想上传两个文件。
这里是脚本

 < form action =form.phpmethod =postenctype = multipart / form-data/> 
< input type =filename =video/> 
< input type =filename =picture> 
< input type =submitclass =inputvalue =շիշել/> 
< input type =hiddenname =MAX_FILE_SIZEvalue =100000000/> 
< / form> 
  

form.php：

 <？ 
 print_r（$ _ FILES）; 
 $ video_name = $ _FILES [video] [name]; 
 $ image_name = $ _FILES [picture] [name]; 
 echovideo，$ video_name; 
 echoimage，$ image_name; 
 //返回Array（）videoimage 
？> 
  

当我尝试上传大于 10MB 的文件时，不会发生。我尝试了很多浏览器。
也许我必须在php.ini中更改一些字段？但我没有权限在服务器上更改它们。所以我能做什么？
thanks

解决方案

文件上传 - 常见陷阱 $ b

MAX_FILE_SIZE项目无法指定
a文件大小大于php.ini
文件中$ b $ upload_max_filesize中设置的文件大小
。默认值为2兆字节。

如果启用了内存限制，则可能需要更大的
memory_limit。确保
设置的memory_limit足够大。

...

如果post_max_size设置得太小，则无法上传
大文件。让
确保你设置post_max_size大
就足够了。

你可以增加MAX_FILE_SIZE 的值四种方式：

1）php.ini

  upload_max_filesize = 20M 
 post_max_size = 20M 
  

2）ini_set（）

  ini_set（'upload_max_filesize'，20M）; 
 ini_set（'post_max_size'，20M）; 
  

<3> .htaccess

  php_value upload_max_filesize 20M 
 php_value post_max_size 20M 
  

4）隐藏表单字段

 < input name =MAX_FILE_SIZEvalue =20971520type =hidden> 
  

i have the form, and i want to upload two files. here is the script

<form action="form.php" method="post" enctype="multipart/form-data" />
<input type="file" name="video"  />
<input type="file" name="picture" >
<input type="submit"  class="input" value="Հիշել" />
<input type="hidden" name="MAX_FILE_SIZE" value="100000000" />
</form>

form.php:

<?
    print_r($_FILES);
    $video_name = $_FILES["video"]["name"];
    $image_name = $_FILES["picture"]["name"];
    echo "video",$video_name;
    echo "image",$image_name;
                              //returns Array ( ) videoimage
?>

when i try to upload the file greater than 10MB, it doesn't happen. i try in many browsers. maybe i must change some field in php.ini? but i haven't permission to change them on the server. so what can i do? thanks

解决方案

File Uploads - Common Pitfalls

The MAX_FILE_SIZE item cannot specify a file size greater than the file size that has been set in the upload_max_filesize in the php.ini file. The default is 2 megabytes.

If a memory limit is enabled, a larger memory_limit may be needed. Make sure you set memory_limit large enough.

...

If post_max_size is set too small, large files cannot be uploaded. Make sure you set post_max_size large enough.

You can increase the value for MAX_FILE_SIZE three four ways:

1) php.ini

upload_max_filesize = 20M
post_max_size = 20M

2) ini_set()

ini_set('upload_max_filesize', 20M);
ini_set('post_max_size', 20M);

3) .htaccess

php_value upload_max_filesize 20M
php_value post_max_size 20M

4) hidden form fields

<input name="MAX_FILE_SIZE" value="20971520" type="hidden">

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