On Thu, Mar 15, 2012 at 4:03 PM, Matijn Woudt <tijnema@xxxxxxxxx> wrote:
> On Thu, Mar 15, 2012 at 8:41 PM, Larry <lrrrgg@xxxxxxxxx> wrote:
>> On Thu, Mar 15, 2012 at 2:57 PM, Matijn Woudt <tijnema@xxxxxxxxx> wrote:
>>> On Thu, Mar 15, 2012 at 7:51 PM, Larry <lrrrgg@xxxxxxxxx> wrote:
>>>> On Thu, Mar 15, 2012 at 12:21 PM, Matijn Woudt <tijnema@xxxxxxxxx> wrote:
>>>>> On Thu, Mar 15, 2012 at 4:59 PM, Larry <lrrrgg@xxxxxxxxx> wrote:
>>>>>> On Thu, Mar 15, 2012 at 11:53 AM, Daniel P. Brown
>>>>>> <daniel.brown@xxxxxxxxxxxx> wrote:
>>>>>>> On Thu, Mar 15, 2012 at 11:30, Larry <lrrrgg@xxxxxxxxx> wrote:
>>>>>>>> Hello, when I pass a variable whose value originally came from $_GET
>>>>>>>> or $_REQUEST to fwrite, fwrite behaves as if it was passed an empty
>>>>>>>> string. Note that the file is successfully opened and written to by
>>>>>>>> the script, but the variable that originally came from $_GET does not
>>>>>>>> have its value interpolated in the text file, even though it does get
>>>>>>>> interpolated in the echo().
>>>>>>>>
>>>>>>>> ---- Code ----
>>>>>>>> <?
>>>>>>>> $meh = $_GET["q"];
>>>>>>>> $writeline = ":" . $meh . ":" . strlen($meh) . PHP_EOL;
>>>>>>>> echo ( $writeline );
>>>>>>>>
>>>>>>>> $fp = fopen("/tmp/wtf.log","w+");
>>>>>>>> fwrite($fp, $writeline );
>>>>>>>> fclose($fp);
>>>>>>>>
>>>>>>>> var_dump($writeline);
>>>>>>>> ?>
>>>>>>>
>>>>>>> Are you sure it's not a permissions-based issue, perhaps when
>>>>>>> writing as the normal user, then the user as which the web server
>>>>>>> runs, et cetera? What happens if you completely remove /tmp/wtf.log
>>>>>>> and re-run your script with the appended query string?
>>>>>>
>>>>>> I have removed the wtf.log file between runs, just did it once more.
>>>>>> Same thing happens. A new file is created, and the contents are "::0"
>>>>>>
>>>>>> So I'm sure its not a permissions issue ( However I'm also sure that
>>>>>> this shouldn't be happening so... ) Thanks.
>>>>>
>>>>> The code is working fine here, of course, it should. Is it really
>>>>> because of the $_GET?, have you tried setting $q = "meh123";?
>>>>> Also, try using file_put_contents('/tmp/wtf.log', $writeline); instead.
>>>>>
>>>>> - Matijn
>>>>
>>>> Yes I have tried to set a variable explicitly with a string, and that
>>>> variable does end up interpolated into the file. I just tried using
>>>> file_put_contents with the same result.
>>>>
>>>> Here is a modified version, showing another variable that does work,
>>>> and file_put_contents():
>>>>
>>>> <?
>>>> $meh = $_GET["q"];
>>>> $good = "Yay I go in the File" . PHP_EOL;
>>>> $writeline = ":" . $meh . ":" . strlen($meh) . ":" . $good;
>>>> echo ( $writeline );
>>>> file_put_contents("/tmp/wtf.log", $writeline );
>>>> var_dump($writeline);
>>>> ?>
>>>>
>>>> Here the response/stdout:
>>>> :meh123:6:Yay I go in the File string(31) ":meh123:6:Yay I go in the File "
>>>>
>>>> But the file is the same:
>>>> root@prime:/tmp# rm wtf.log
>>>> root@prime:/tmp# ls wtf.log
>>>> ls: cannot access wtf.log: No such file or directory
>>>> [ I make the request ]
>>>> root@prime:/tmp# cat wtf.log
>>>> ::0:Yay I go in the File
>>>
>>> Have you checked apache log files for any warnings/errors?
>>> How about writing $_GET['q'] directly? eg.
>>> file_put_contents('/tmp/wtf.log', $_GET['q']);?
>>
>> Yes I tried using $_GET['q'] directly to no avail. However, you found
>> a clue! apache error.log is giving this:
>> PHP Notice: Undefined index: q in /var/www/test/search.php on line 2
>>
>> Strange b/c I am obtaining and using that value successfully in echo()!
>
> Well.. That seems pretty buggy, I guess it's a bug in PHP. Try
> changing q in something else, and maybe you want to submit a bug
> report to PHP?
Changing the index name didn't help. I think I will submit a bug,
after a bit more scrutiny of my php.ini to make sure there isn't some
restriction in there. This is a default ubuntu apache/php.ini though.
Thanks again.
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