PHP & Writing to Files

[cmahnken]

I want to save some data from a form to a .csv file. Formatting the data is no problem, but getting fopen() to return a file handle does seem to be a bit of an issue.

This code doesn't seem to work:

[nbsp][nbsp]// $data already has the csv info to write

[nbsp][nbsp]$szFile = "storage/survey.csv";
[nbsp][nbsp]$hFile = fopen($szFile, 'a'); echo $f;
[nbsp][nbsp]$i = fwrite($hFile, $data, strlen($data));
[nbsp][nbsp]fclose($hFile);

Am I missing something obvious? Do I need to chmod the file that is doing the writing?

[Rich]

$szFile needs to be a fully qualified path:

$szFile = '/big/dom/xdomain/.../storage/survey.csv';

Rich

[cmahnken]

That's actually the way it is in my code, I just remove the full path to protect the innocent. I'll put together a test case and try it out and get back to you if I still can't get it to work.
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Chris Mahnken

[cmahnken]

No joy. Even using the full path, with and without the file already existing, I can't seem to get this to work.


$data = "test data\n";

$file = "/big/dom/xcruisingco/www/mkt/dbfile/survey.csv";

if (file_exists($file))
{
[nbsp][nbsp] $f = fopen($file, "a");
[nbsp][nbsp] if ($f)
[nbsp][nbsp] {
[nbsp][nbsp][nbsp][nbsp][nbsp][nbsp]$x = fwrite($f, $data, strlen($data));
[nbsp][nbsp][nbsp][nbsp][nbsp][nbsp]fclose($f);
[nbsp][nbsp] }
[nbsp][nbsp] else
[nbsp][nbsp] {
[nbsp][nbsp][nbsp][nbsp][nbsp][nbsp]echo "Drat!";
[nbsp][nbsp] }
}
else
{
[nbsp][nbsp] echo "file missing";
}


Anybody have any ideas?

------------------
Chris Mahnken

[Rich]

(1) What happens/outputs when you run the script?

(2) What errors are displayed onscreen or in the error log?

Rich

[dank]

Have you chmod'ed the file (0666 or 0777) before trying to write to it?

Dan

[cmahnken]

Rich:

1) Nothing happens. In tests to create the file, no file is created and fopen() returns false. In tests to write to a file fopen() again fails. There are no onscreen errors, just the false return from fopen().

2) The php_error log shows:


PHP Warning:[nbsp][nbsp]fopen("/big/dom/xcruisingco/www/mkt/dbfile/survey.csv","a") - Permission denied in /big/dom/xcruisingco/www/mkt/survey2.php on line 51


Dan,

I'll try that now. Thanks for the hint.

------------------
Chris Mahnken

[cmahnken]

Dan gets the prize. I knew it was something that my tiny microsoft addled brain just couldn't quite understand. Now, how do I create a new file (which I can chmod from PHP)...


------------------
Chris Mahnken

[dank]

I generally use a variation of your code so as to see where it's choking:


if ( !($myFile = fopen("./$filename", "w")) ) {
[nbsp][nbsp][nbsp][nbsp] print("Error: $filename could not be written to.");
[nbsp][nbsp][nbsp][nbsp] exit;
}


If you are trying to create the file on the fly, as opposed to merely writing to an existing file, then I believe you will be butting heads with Safe Mode.[nbsp][nbsp]I think the workaround would be to run the Apache executable version of PHP.[nbsp][nbsp]There is info scattered throughout the forums on that topic.

Dan

p.s.[nbsp][nbsp]I haven't had luck chmod'ing a file through PHP...

[This message has been edited by dank (edited 05-22-01@2:37 pm)]