Topic: error in submit.php, Wflash

[Axelvold]

I get the following error i my server error file,

[Fri Apr 03 18:44:13 2009] [error] PHP Notice:  Undefined index:  F in H:\\htdocs\\Flash\\scripts\\submit.php on line 9

This is what submit.php looks like, line 9 in bold.

<?php
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
header("Expires: Mon,26 JUL 1997 05:00:00 GMT");

// Please change USERID below to the User ID supplied
// Do NOT alter anything else in this file
if ($_GET["I"]=="userid" ){
  if ($_GET["F"] != ""){
      $fp=fopen("../Data/wflash.txt", "w");
      $TempStr=$_GET["F"];
      $TempStr2=str_replace(" ","+",$TempStr);
      fwrite($fp, "F=".$TempStr2);
   }else{
      $fp=fopen("../Data/wflash2.txt", "w");
      $TempStr=$_GET["S"];
      $TempStr2=str_replace(" ","+",$TempStr);  
      fwrite($fp, "S=".$TempStr2);
   }
   fclose($fp);
}
?>

what is wrong with it?

[jay_hoehn]

Lars,

I compared your submit.php to mine and they are identical.  Your page seems to work on my end.  What seems to be the issue?

Jay

[Axelvold]

Hi Jay

The page works, but i get an error in the web server log.

[Fri Apr 03 18:44:13 2009] [error] [client 83.209.47.5] PHP Notice:  Undefined index:  F in H:\\htdocs\\Flash\\scripts\\submit.php on line 9

i did try to change F to C but i did not make any diffrent.

[jay_hoehn]

Lars,

Sorry, I can't help with that.

Jay

[Meteorologica]

First I must once again emphasize that this is NOT the place to get support for WeatherFlash, you should contact us directly if you require assistance with these sort of problems! http://www.meteorologica.co.uk/contact.asp

However, I will tell you that there is nothing wrong with your script, it is designed to be the way it is. There is no error, the F variable doesn't always exist in the data string. The F does not represent temperature!

[Axelvold]

First I must once again emphasize that this is NOT the place to get support for WeatherFlash, you should contact us directly if you require assistance with these sort of problems! http://www.meteorologica.co.uk/contact.asp

However, I will tell you that there is nothing wrong with your script, it is designed to be the way it is. There is no error, the F variable doesn't always exist in the data string. The F does not represent temperature!

if there now is nothing wrong with the script, still remains the question why is the error in the server log?

[Meteorologica]

It is not an error it is simply telling you that the variable F is not in the data stream. That is normal, the variables that get sent to the script do change and they are not all present all of the time!

[Axelvold]

ok, thanks for the information

[saratogaWX]

And...  you can get rid of the log entry for Notice errors by changing your php.ini to have

error_reporting = E_ALL & ~E_NOTICE

You get the error with 'F' mentioned because the F= is only used to update the wflash2.txt record.

It's also possible to skip the error by adding an isset() to test for the existence of the argument first:

<?php
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
header("Expires: Mon,26 JUL 1997 05:00:00 GMT");

// Please change USERID below to the User ID supplied
// Do NOT alter anything else in this file
if (isset($_GET["I"]) && $_GET["I"]=="userid" ){
   if (isset($_GET["F"]) && $_GET["F"] != ""){
      $fp=fopen("../Data/wflash.txt", "w");
      $TempStr=$_GET["F"];
      $TempStr2=str_replace(" ","+",$TempStr);
      fwrite($fp, "F=".$TempStr2);
   }else{
      $fp=fopen("../Data/wflash2.txt", "w");
      $TempStr=$_GET["S"];
      $TempStr2=str_replace(" ","+",$TempStr);   
      fwrite($fp, "S=".$TempStr2);
   }
   fclose($fp);
}
?>

then the script won't log a PHP error even if the arguments are missing and error_reporting = E_ALL 

Best regards,
Ken