Creating an editable style sheet

Hi,
I'm trying to create a script that opens a css style sheet and inside a form field, inserts the data from the style sheet, so that it can be edited as a whole. I'm also trying to have a submit button that writes the whole thing back to the file.
I know to open the file, I need to use fopen(), but that's about as far as my knowledge spreads. And I also know that the script isn't unique to a css stly sheet but could be used for any file.
I would appreciate some help with my problem greatly,
Thanks,

<?php
$file = $_GET['file'];
$css = file_get_contents($file);
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<textarea name="css"><?php echo $css; ?></textarea>
<input type="hidden" name="file" value="<?php echo $file; ?>" />
<input type="submit" />
</form>
<?php
if (isset($_POST['css']) && isset($_POST['file'])){
$file = $_POST['file'];
$css = $_POST['css'];
$f_handle = fopen($file, 'w+');
fwrite($f_handle, $css);
}
?>

Thanks for the quick reply, but when I run the script, I get an error on the line:
fwrite($f_handle, $css);
Can you help?
Also, where do I put the path to the file and can I put it as an URL or do I have to use a server path?
Thanks,

<?php
//you know where the CSS is, so no need to let the user choose the file
$file='/var/www/mysite/css/style.css';

//perhaps confusingly, deal with the submission first
if(isset($_POST['the_css'])) {
$fp=fopen($file,'w+'); //open the file for *w*riting
$fwrite($fp,$_POST['css']); //write the contents
fclose($fp); //remember to close the file
}


//to display the form
$css=file_get_contents($file); //read in the file contents

//no need for php to get in the way for a while...
?>
<form action="" method="post">
<textarea rows="10" cols="40" name="the_css">
<?php echo $css; ?>
</textarea>
<input type="submit" value="Submit" />
</form>


the file specified in $file must be writable by the web-server.
Accepting the file location from the user, is a really really stupid thing to do.
Remember though, that people could put things in the CSS that you might not want them to.

I still get this error:
Warning: fopen(http://versa-soft.com/css.css) [function.fopen]: failed to open stream: HTTP wrapper does not support writeable connections. in
public_html/admin/css/editcss.php on line 29
Fatal error: Call to undefined function: () in public_html/admin/css/editcss.php on line 30
This error appears when the page is submitted. The inclusion of the css file works fine though.
Thanks for the help,

as my example showed, it needs to be a file-system location, not a url.

This is a really stupid question:
How do I get to the public_html directory with a filesystem?
Thanks,

Ok, I've found out the last question, but I still get errors. I've totally changed the file permissions and I tried ignoring the errors, but then it totally wipes my style sheet.
Thanks for all of the help,

it depends.
typically, you'll have:
/home/ttttt/public_html
(where ttttt is the username you log in with).
typing 'pwd' at a command line will tell you...think this will work with ftp as well as shell access.
if you're using a gui ftp client, then there must be some way of determining the current directory...

without giving the errors, it's really difficult to help...

The error is:
Fatal error: Call to undefined function: () in /home/ttttt/public_html/admin/css/editcss.php on line 30
Thanks,

The thought suddenly dawned on me, I'm only using PHP 4. Does this make a difference when fdealing with the errors?
Thanks,

Have you chnaged the permissions? to 777?

typo on my part,

$fwrite($fp,$_POST['css']); //write the contents

should have been

fwrite($fp,$_POST['css']); //write the contents

It still doesn't work.
No PHP errors appear, but it doesn't write the style sheet, it doesn't wipe totally.
So far, I am using this code:

<?php
//you know where the CSS is, so no need to let the user choose the file
$file='/home/ttttt/public_html/css.css';

//perhaps confusingly, deal with the submission first
if(isset($_POST['the_css'])) {
$fp=fopen($file, 'a+'); //open the file for *w*riting
fwrite($fp,$_POST['the_css']); //write the contents
fclose($fp); //remember to close the file
}


//to display the form
$css=file_get_contents($file); //read in the file contents

//no need for php to get in the way for a while...
?>
<form action="" method="post">
<textarea rows="10" cols="40" name="the_css">
<?php echo $css; ?>
</textarea>
<input type="submit" value="Submit" />
</form> </p>
Thanks,

try this
$fp=fopen($file,'a');

No that doen't work either.
The file is opened fine, but the contents aren't saved to the file. No PHP error messages either!
Thanks,

what php version have you got installed?

PHP version : 4.4.4

hmm maybe you cant save to a css file

Thats not it...


$file = 'hi.css';
$f_handle = fopen($file, 'a+');
fwrite($f_handle, 'Hi there, some css here!');
fclose($f_handle);
echo file_get_contents($file);

Try that... Anything output?

I get the file in the text box fine. No PHP errors, no wiping of the style sheet. However, the new contents aren't saved to the file.
Thanks,

another type, $_POST['css'] on the fwrite line should be 'the_css'

Still the same as the last post.
Thanks,

You could just keep the stylesheet in a mysql database...

Could I also do that with xml?
And how would I do that?
Also,
we could try putting the form on one page and the writing to the css file on another page and have them linked by the submit button?
Thanks,

The code I posted, with the 2 typos I've pointed out corrected works, I ran it on my own machine (something I don't normally do when giving answers, as I assume the questioner will actually read the code in an attempt to understand it and so spot simple mistakes...), so I can only assume the file isn't writable by the server.

It works!!!!
The final code is (by GJay):
<?php
//you know where the CSS is, so no need to let the user choose the file
$file='/home/ttttt/public_html/css.css';

//perhaps confusingly, deal with the submission first
if(isset($_POST['the_css'])) {
$fp=fopen($file,'w+'); //open the file for *w*riting
fwrite($fp,$_POST['the_css']); //write the contents
fclose($fp); //remember to close the file
}


//to display the form
$css=file_get_contents($file); //read in the file contents

//no need for php to get in the way for a while...
?>
<form action="" method="post">
<textarea rows="10" cols="40" name="the_css">
<?php echo $css; ?>
</textarea>
<input type="submit" value="Submit">
</form>
Thank you so much!,

$fp=fopen($file, 'a+');


Should be


$fp=fopen($file, 'w');

at last it works :P

Heh, no problem, help 5 people in two days ;) I like this forum lol