Reply to Re: [PHP] Re: PHP 5 limits "readfile" to 1.9 MB?

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Posted by Jordan Miller on 08/17/05 18:01

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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