problem when uploading file

Question

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

i assume you've changed this line : <input type="hidden" name="MAX_FILE_SIZE" value="100000000" /> otherwise there's your problem — chris
– chris, Commented Apr 9, 2010 at 16:21

John Conde · Accepted Answer · 2010-04-09 17:08:19Z

7

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">

edited Apr 9, 2010 at 17:08

answered Apr 9, 2010 at 16:25

John Conde

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11 Comments

Simon Over a year ago

@John Conde is there any function to do this( like ini_set())?

Robert Over a year ago

MAX_FILE_SIZE is only a HINT for your browser and does not specify the limit PHP accepts for file uploads.

Powerlord Over a year ago

@Robert: The browser doesn't understand MAX_FILE_SIZE as anything but a form field. It's PHP that uses this value, but it can't override the ini setting.

Simon Over a year ago

@John Conde thanks much:) and what is the highest limit of that size?

John Conde Over a year ago

@Syom, It's whatever you want it to be (assuming you have control over server settings). On my dedicated server it is set to 100M since we have clients who upload large files.

|

jweyrich · Accepted Answer · 2010-04-09 16:26:17Z

1

In your php.ini, adjust the upload_max_filesize directive. Also set the memory_limit to a higher number.

answered Apr 9, 2010 at 16:26

jweyrich

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