PHP: command to add info to top of file

[Bouley86]

Alrite, I have a script that will write things to a file for a small, very basic guestbook. But, they add the new entries to the bottom of the list and I want them added to the top. What do I have to put into the write command that makes the script add the new entry to the top of the file?

[scoutt]

http://www.snippetlibrary.com/viewhtml.php?id=6&kid=14&siteid=234

[Bouley86]

Thanks..but I've added that code and changed the things i needed to..but it still doesnt write to the top of the file. Here's what I'm workin with:

switch ($option2)
{

case 'sign':
echo("<center>Thanks for signing my guest book! You can now view it in my profile!</center>");


$file_name = "$dir/$sn/gbook.txt";
$fp=fopen("$file_name", "a+");
flock($fp, 2);
$old_data = fread($fp, ($file_name));
rewind($fp);
fwrite($fp, "<a href=\"aim:goim?ScreenName=$who\">$who</a>: $gbook<br>\n" . $old_data);
flock($fp,3);
fclose($fp);
break;

default:
$who = str_replace("_", " ", "$who");
echo("Sign $sn's Profile Guestbook\n");
echo("<form name=\"book\">\n");
echo("<input type=hidden name=\"option2\" value=\"sign\">\n");
echo("<input type=hidden name=\"sn\" value=\"$sn\">\n");
echo("Screen Name:<input type=\"text\" name=\"who\" value=\"$who\"><br>");
echo("Message:<textarea name=\"gbook\" wrap=\"physical\" rows=\"5\" cols=\"39\"></textarea><br>");
echo("<input type=\"submit\" value=\"Sign It\"></center>");
echo("</form>");
break;
So could someone please tell me what I have wrong?

[scoutt]

instead of a+ use r+

[Bouley86]

well now for some reason it's not rewriting the old data. When someone tries to add something its just overwrites all the old stuff with the new stuff. Any thoughts?

[Bouley86]

alrite..so now i do have a question i dont know the answer to. When someone signs the guestbook that i have successfully created (thanks for the help :)) it makes a gbook.txt file in the user's folder. But now say i need to delete a user..like one i just wanted to test scripts on, when i go to delete the files in my FTP client, it tells me that i dont have permission to delete them. So how do i go in and delete these files and folders. Any thoughts?

[scoutt]

ok try this

$oldmask = umask(0);
$file_name = "$dir/$sn/gbook.txt";
$fp=fopen("$file_name", "a+");
flock($fp, 2);
$old_data = fread($fp, ($file_name));
rewind($fp);
fwrite($fp, "<a href=\"aim:goim?ScreenName=$who\">$who</a>: $gbook<br>\n" . $old_data);
flock($fp,3);
fclose($fp);
chmod($file_name, 0777);
umask($oldmask);

don't ask but it just works. :)

[Bouley86]

um..yeah..it didnt work. So any other ideas? Like is there a script i can use that you enter the file and the path and it just deletes the file? Mad confused, any thoughts?

[scoutt]

umm yeah did you get an error?

try this way


$oldmask = umask(0);
$file_name = "$dir/$sn/gbook.txt";
$fp=fopen("$file_name", "a+");
flock($fp, 2);
$old_data = fread($fp, ($file_name));
rewind($fp);
fwrite($fp, "<a href=\"aim:goim?ScreenName=$who\">$who</a>: $gbook<br>\n" . $old_data);
flock($fp,3);
fclose($fp);
exec(chmod $file_name 0777);
umask($oldmask);


if you want to delete a file you use unlink(file_name) and if you want to delete a folder you use rmdir($dir);

but you have to have the folder empty first.

[Bouley86]

when i add that the gbook.php?sn=whatever page comes up blank..

[Bouley86]

well i figured out that the problem occurs with the
exec(chmod $file_name 0777);
line but i dunno how to fix it.

[Bouley86]

well i changed that line to
chmod ("$file_name", 0777);
but i still can't delete the file in my FTP client. Is this something im still doing wrong or should i contact the people who provide my server and ask for help?

[Paul]

Just chmod the file to 777 in your FTP client and delete.
Good luck,
Paul

[Bouley86]

when i try and chmodd it it says "550 gbook.txt: Operation Not Permitted"

[Bouley86]

and when i try and delete it it says "550 gbook.txt: Permission Denied"

[scoutt]

that is why I said to do this

$oldmask = umask(0);
$file_name = "$dir/$sn/gbook.txt";
$fp=fopen("$file_name", "a+");
flock($fp, 2);
$old_data = fread($fp, ($file_name));
rewind($fp);
fwrite($fp, "<a href=\"aim:goim?ScreenName=$who\">$who</a>: $gbook<br>\n" . $old_data);
flock($fp,3);
fclose($fp);
chmod($file_name 0777);
umask($oldmask);

and I told you to use unlink() on the file.

if you run this in the directory right above the the one you cannot delete it should delete it.

$file_name = "$dir/$sn/gbook.txt";
unlink($file_name);