Auto-Prune Log

[prattmic]

I have text logs that I wish to auto-prune.  This is the header of the log:
[code=php:0]<?php
// DO NOT DELETE THIS
include 'phpsimplechoose_config.php';
//Below is where the verification takes place. Try to play around with it.
if (!isset($_SERVER['PHP_AUTH_USER'])) {
header('WWW-Authenticate: Basic realm="Please enter User/Password"');
header('HTTP/1.0 401 Unauthorized');
die;

} else {

if (($_SERVER['PHP_AUTH_USER'] !== $phpsc_username) || ($_SERVER['PHP_AUTH_PW'] !== $phpsc_password)) {
header('WWW-Authenticate: Basic realm="Incorrect! Please try again."');
header('HTTP/1.0 401 Unauthorized');
die;
}
}
// To delete log erase everything after the next line, but not the next line itself (Line 20 and down can be deleted)
?>[/code]

The rest of the log consists of lines looking somewhat like this:
[code]192.168.1.1: Thu August 10, 2006 11:23 : Choice 1.  thgfd  Choice 2.  hfghfghd  Choice 3.  fgdgfh  We say... hfghfghd <br />[/code]

What I want to do is when the log reaches X number of the previous entries for it to delete some.  However, I want the header not to be deleted.

If you need more info, just ask!

Thanks in advance!

[Jocka]

you could just use some file functions to count the lines and if you have so many, delete from wherever to wherever... ya know what i'm saying? lol.

[prattmic]

Well, I'm kinda new to PHP, so I get what your saying, but I don't know how to do it.

[Jocka]

alright googled and found ya something. use something like this

[code]<?
  $file = "logs.php";

  // NUMBER OF LINES
  $lines = count(file($file));

  // This will look for 50 or more entries if logs start at line 20 (19 in array)
  if($lines >= '69'){
 
      // CODE TO ERASE FIRST 20 or 30 I SUPPOSE
      // ... I'm looking for some code now lol..
       
  }
 
?>[/code]

[prattmic]

I wouldn't want to delete first 19 lines as that would get rid of my header in the log.  And I would want to delete enough so that it is under its limit of lines.

[Jocka]

that wouldn't delete the first 19 lines. I'm just calculating, if the line number for the first log is 19 then 69 makes the log 50 lines long. There for there are 50 entries.
Whats your limit, like how many do you want on there? 10,30,50,100? I think i might have found the code you need. But I also need to know how your log is ordered. 20th line being the newest or oldest?

[prattmic]

Line 20 is the first line of my log and it is the oldest entry.  Well, since this is for a script that I distribute, the limit would vary meaning it would need some kind of code to add 19/20 to however high the limit is.

[Jocka]

oh so the limit isn't really SET, its whatever the person wants.. right.. ok. 19 being oldest, you'd need to delete enough to keep the limit.

As in, if there is a limit of 100 and you have 104, you only need to delete the first 4.

alright, let me see what i can find here.

[prattmic]

Yes, except 20 is the oldest. 19 is [code=php:0]?>[/code]

[prattmic]

Um, are you going to give me the code?

[prattmic]

Hello?

[prattmic]

...  ??? ??? ???

[Jocka]

alright. i wrote something quick with what i gave u yesterday and some other code. you should look over it and fix / edit everything you need to
[code]
<?
$file = "logs.php";
$limit = "50";
$text = NULL;

// NUMBER OF LINES
$logs = file($file);
$lines = count($logs);

$line_count = $lines - 18;

// This will look for 50 or more entries if logs start at line 20 (19 in array)
if($line_count > $limit){

    $line_count = $line_count - 50;
    $line_count = $line_count + 18;

    if (!$handle = fopen($file, 'w')) {
      echo "Cannot open file ($file)";
      exit;
    }

    foreach($logs as $line_num => $line){

        if($line_num <= '18' || $line_num > $line_count){

          $text .= $line . "\n";

        }
    }

    if (fwrite($handle, $text) === FALSE) {
      echo "Cannot write to file ($file)";
      exit;
    }
 
    fclose($handle);
 
}
 
?>
[/code]
let me fix this real quick

[prattmic]

The script is making my log longer not shorter.

[Jocka]

i made a small change to the code.. try it again

[prattmic]

Now it got rid of the part that wasn't suppose to be deleted

[Jocka]

ok i edited it again.. try again.. sry about all the problems, i'm just rushing through it lol

[prattmic]

Now it deleted the whole log.

[prattmic]

hello?

[prattmic]

...

[prattmic]

bump

[Jocka]

ok.. did some things again.. try it again. I really am sorry. I didn't want this to take this long either, i swear.

[prattmic]

ok, Now it doubled everything and put an extra blank line between every line.

[Jocka]

i dunno.. it should've worked.. i'm lost now..

[prattmic]

Do you want the log, and you can mess around with it?