ID: 46043
User updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
Status: Bogus
Bug Type: Streams related
Operating System: Linux, debian
PHP Version: 5.2.6
New Comment:
But it does work fine (and returning the correct data) with a lower
offset?
The provided code also shows that the error only occurs at some cutoff
point, meaning the stream supports seeking without any problems until
the limit.
I suppose this "it sometimes works" nature should be noted in the
documentation or at least disallow file_get_contents() from using offset
at all at a stream that does not support fseek().
Currently it is in a state where the feature could work one day and not
the next (I suppose if the content is found within the first chunk of
the request of a given limit) where it is not clear why the feature is
not working.
At least the text "stream does not support seeking" is confusing as
some kind of offset usage is possible to a certain limit.
Previous Comments:
------------------------------------------------------------------------
[2008-09-10 23:11:36] [EMAIL PROTECTED]
You cannot seek on non-local files.
------------------------------------------------------------------------
[2008-09-10 14:55:42] [EMAIL PROTECTED]
Description:
------------
file_get_contents() supports an offset. However, at certain times this
gives an "stream does not support seeking" at a certain offset. This
offset might differ with installations and the website a resource is
requested from.
Reproduce code:
---------------
file_get_contents("http://stock.ter.dk/taske.jpg";, null, null, 8000,
1000);
Expected result:
----------------
The content should be returned
Actual result:
--------------
Warning: file_get_contents(): stream does not support seeking in
Command line code on line 1
Warning: file_get_contents(): Failed to seek to position 8000 in the
stream in Command line code on line 1
The exact cutoff-point seem to differ. A script such as the following
gives different results at different servers.
<?php
$offset = 0;
$length = 500;
while ($file = file_get_contents("http://stock.ter.dk/taske.jpg";, null,
null, $offset, $length)) {
print "$offset, $length\n";
$offset += $length;
}
?>
PHP 5.2.6-0.dotdeb.1 with Suhosin-Patch 0.9.6.2 (cli):
0, 500
500, 500
1000, 500
1500, 500
2000, 500
2500, 500
3000, 500
3500, 500
4000, 500
4500, 500
5000, 500
5500, 500
6000, 500
6500, 500
7000, 500
7500, 500
Warning: file_get_contents(): stream does not support seeking in
/home/penguin/- on line 4
Warning: file_get_contents(): Failed to seek to position 8000 in the
stream in /home/penguin/- on line 4
PHP 5.2.0 (cli) (built: Nov 26 2006 10:25:07):
0, 500
500, 500
1000, 500
Warning: file_get_contents(): stream does not support seeking in
/home/penguin/- on line 4
Warning: file_get_contents(): Failed to seek to position 1500 in the
stream. in /home/penguin/- on line 4
The behaviour is the same whether php-cli or mod_php is used, as seen
at http://stock.ter.dk/filegetbug.php
(as a side note, file_get_contents() [or rather, the http stream] could
try to use a ranged request when an offset and range is present, with a
fallback to the current behaviour if the webserver returns the whole
file)
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--
Edit this bug report at http://bugs.php.net/?id=46043&edit=1
![http://stock.ter.dk/taske.jpg"](http://stock.ter.dk/taske.jpg"){kind=link}