(newbie) Help with storing form data

[Panthera]

I'm rather new to PHP and i've created a guestbook style script for users to give feedback on an article im doing.

Everything is fine so far, and it works.. but i'm having a slight problem storing all the data from the forms.

Im using a .txt file and fopen, fputs etc to store the form data inside the .txt file. I can get it working fine using:

$data = fopen ($datafile, "a+");
fputs ($data, $storedata);

But i want new comments up the top, so i want it to store new entries at the top of the file and not at the bottom... so i use:

$data = fopen ($datafile, "w+");
fputs ($data, $storedata);

But then it overwrites the whole file and then puts the new entry in 🙁... I've tryed "r+" aswell and it does the same thing 🙁.

Can anyone help?

Thanks

P.S: Heres the full code for that im using for storing the data:

/* If there are errors, display the message */
if ($errors != 0)
{
print ("$errorMsg");
exit;
}

/* Check if datafile is accessable */
if (!file_exists($datafile)) 
{
	print ("Cant access $datafile!");
	exit;
} 
else 
{
	/* Sleep for 3 secs, good flood script protection */
	sleep(3);

/* If it does, open it and store the data */
$data = fopen ($datafile, "w+");
fputs ($data, $storedata);

/* Then close the file */
fclose ($data);
}

[bubblenut]

You could pull the contents out into a variable and then add the new entry at the top

<?php
$fp=fopen($datafile, "w+");
$data="";
while(!feof($fp)) {
  $data.=fgets($fp, 1024);
}
fwrite($storedata.$data, $fp);
fclose($fp);
?>

HTH
Bubble

[scoppc]

if u want it at the top of the file, I guess u should first read all the current content in the file, store it in a variable.
Then write the new content followed by the old one (the one u've stored in a variable, of course).
HTH.

[Panthera]

Thanks bubblenut,

But i used your code and got a "Unable to find file identifier 0" error which i fixed by swapping around $storedata.$data and $fp in: fwrite($storedata.$data, $fp)

(from fwrite($storedata.$data, $fp) to fwrite($fp, $storedata.$data))

But then it does the same thing 🙁 (overwrites the current data).

Sorry but im a real newbie 😉... I understand that code a bit, but i honestly dont know exactly what its doing.

[maxpup979]

So your code appends the new stuff to the end of the file--why not just read in the entries, store em in an array, and do a reverse sort?

[Panthera]

Originally posted by maxpup979
So your code appends the new stuff to the end of the file--why not just read in the entries, store em in an array, and do a reverse sort?

I'd love to know how to do that 🆒