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Posted by Jordan Miller on 10/21/05 02:55
On Oct 20, 2005, at 6:29 PM, Brian Dunning wrote:
> In my File Upload form, if the file is >=2MB, the user just gets a
> blank "error opening file" screen, almost immediately after the
> upload starts. I don't know how to trap for this to give a more
> user-friendly experience. Can anyone point me in the right direction?
>
are you using PHP 5? If so, maybe check out this, below.
Jordan
> From: jmil@hymiegladstone.com
> Subject: Re: [PHP] Re: PHP 5 limits "readfile" to 1.9 MB?
> Date: August 17, 2005 10:26:40 AM CDT
> To: catalin@isp-software.de
> Cc: php-general@lists.php.net
> In-Reply-To: <98.D9.33075.49553034@pb1.pair.com>
>
> Ok, just checking (I am new to the fopen() function). That makes
> sense. Awesome, thanks!
>
> Jordan
>
> On Aug 17, 2005, at 10:19 AM, Catalin Trifu wrote:
>
>
>
>> Hi,
>>
>> Indeed a fclose($fp) is needed (wrote it as an example :)).
>> 1MB is more than enough as a buffer. If you have a 53MB file,
>> what will happen then ?
>> I have no idea if it's a bug or a feature. Either way I did lose
>> some hair over this when I switched from PHP4 to PHP5.
>>
>> Catalin
>>
>>
>> Jordan Miller wrote:
>>
>>
>>
>>> Catalin,
>>> Wow, that worked great, thanks.
>>> I'm curious why you set a static buffer of 1024768... why not
>>> just do filesize($file), as shown at http://www.php.net/fread ?
>>> Is it better for memory usage to have a potentially smaller
>>> buffer? Also, you may want an fclose($fp) after the file has
>>> been downloaded.
>>> So is this a bug in PHP 5 or are they just purposely limiting
>>> the abilities of the "readfile" command?
>>> Jordan
>>> On Aug 17, 2005, at 3:36 AM, Catalin Trifu wrote:
>>>
>>>
>>>
>>>> Hi,
>>>>
>>>> I've had a similar problem. The download always stopped at
>>>> exactly 2.000.000 bytes.
>>>> You have to work around that with:
>>>> $fp = fopen($file, 'r');
>>>> if($fp) {
>>>> while(!feof($fp)) {
>>>> echo fread($fp, 1024768);//see the huge buffer to read into
>>>> }
>>>> } else {
>>>> //whatever error handler
>>>> }
>>>>
>>>> Catalin
>>>>
>>>>
>>>> Jordan Miller wrote:
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>> Hello all,
>>>>> I am new to this list and I have searched the archives to no
>>>>> avail. I am having a peculiar problem when upgrading to PHP 5:
>>>>> My downloads are now limited to the first 1.9 MB of the file
>>>>> in question, with the download either terminating at 1.9 MB
>>>>> or seemingly continuously stuck in a downloading process at
>>>>> 1.9 MB. The code in the PHP script has not changed and all
>>>>> parameters that I could find that are relevant to this
>>>>> problem are given below:
>>>>> the minimal code needed for download:
>>>>> // $file_to_read is the complete path of the file to
>>>>> download
>>>>> header("Content-Type: application/pdf");
>>>>> header( "Content-Disposition: inline; filename=
>>>>> \"$filename \"");
>>>>> $len = filesize($file_to_read);
>>>>> header("Content-Length: $len");
>>>>> @readfile($file_to_read);
>>>>> php.ini file for both php version 4 and 5 contain the
>>>>> following settings that may be relevant:
>>>>> allow_url_fopen = On
>>>>> max_execution_time = 300 ; Maximum execution time of each
>>>>> script, in seconds
>>>>> max_input_time = 300 ; Maximum amount of time each script
>>>>> may spend parsing request data
>>>>> memory_limit = 8M ; Maximum amount of memory a script
>>>>> may consume (8MB)
>>>>> post_max_size = 200M
>>>>> upload_max_filesize = 200M
>>>>> Some additional details:
>>>>> All files less than 1.9 MB download fine
>>>>> It is not a corrupted file, because all files larger than 1.9
>>>>> MB fail after 1.9 MB
>>>>> The connection is not timing out (download of 1.9 MB takes
>>>>> only ~15 sec)
>>>>> Mac OS X 10.3.9 with Marc Liyanage's PHP 5.0.4
>>>>> Fails for both Safari and Firefox
>>>>> Fails regardless of "inline" or "attachment"
>>>>> Fails regardless of "pdf" or "ppt" content-type
>>>>> This PHP code ALWAYS works for Marc Liyanage's PHP 4.3.4 with
>>>>> the same settings, above
>>>>> What am I doing wrong??? Any other parameter in php.ini I
>>>>> should have set? Any suggestions are much appreciated.
>>>>> thanks,
>>>>> Jordan
>>>>>
>>>>>
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