From: [EMAIL PROTECTED]
Operating system: Linux, debian
PHP version: 5.2.6
PHP Bug Type: Streams related
Bug description: file_get_contents() gives "stream does not support seeking"
error with offset
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)
--
Edit bug report at http://bugs.php.net/?id=46043&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=46043&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=46043&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=46043&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=46043&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=46043&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=46043&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=46043&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=46043&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=46043&r=support
Expected behavior: http://bugs.php.net/fix.php?id=46043&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=46043&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=46043&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=46043&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=46043&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=46043&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=46043&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=46043&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=46043&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=46043&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=46043&r=mysqlcfg
![http://stock.ter.dk/taske.jpg"](http://stock.ter.dk/taske.jpg"){kind=link}