How would I get this log to automatically clear or be limited to how many?

[brianjw]

Hi,

 

I apologize if this is the wrong place to post this thread.

 

I have created a log file for a php proxy script. The log is being generated by using this code:

$proxytime = date('h:i:s A');
$proxydate = date('d-m-Y');
$stuff = $_SERVER['REMOTE_ADDR'].",".$url." , ".$proxydate." , ".$proxytime."\n";
$fp = fopen('log.txt',"a");
fwrite($fp,$stuff);
fclose($fp);

 

I need to know how I can get the log to be limited to only 100 entries or something and then the oldest log would disappear, if you know what I mean. How would I do such a thing?

 

Would it need to modify this code or make a shell? Please understand that I am a huge noob with php, shells, cronjobs, etc. lol and will probably need someones assistance who is willing to explain it to me.

 

Thank you.

Brian

[Adam]

Using a database would be simpler for limiting the entries, if you have one available too you? Adam

[brianjw]

Yes, I have a database. However the proxy doesn't use databases so...

 

If it is possible to some how limit it without using a database that would be awesome.

 

I did see a comment here: http://luiscosio.com/add-url-logging-to-phproxy-05b2#comment-14292

Would that work? I have no idea how to set it up as they didn't provide clear instructions. And would that limit it only to 100 entries?

[Adam]

That just moves all the log entries up a file.. like from file 1 to 2.. file 2 to 3 etc.. however frequently you set up the cron to run. There's nothing limiting the logs to 100 entries though.. I'm a little unsure myself about how you could do it..

[brianjw]

Ok, I will wait until someone who does know then.

Thanks for posting though.

[brianjw]

BUMP ;)

[brianjw]

[.josh]

You can use file to read the contents of the file into an array (each line is an element), and array_unshift to prepend an element to that array (insert the new line at the beginning, if you are wanting newest -> oldest) or array_push to put it on the end of the array (insert new line at end, if you are wanting oldest -> newest). 

 

From there, if this script is only being called every $x time, you can use array_slice to get the first or last 100 elements.  If the script is being triggered every request or something, you can use an array_shift/array_push combo to take first element off while putting new one on end, or use an array_pop/array_unshift combo to chop off the last element while putting new on at the beginning. 

 

From there, all you have to do is run a loop to write each element of the array back to the file (don't forget to add the line breaks to the element you are unshifting or pushing).

[brianjw]

Thank you for the explanation. However, everything you said is like a foreign language to me.

 

If you could explain it in NOOB terms or something then it would be great.

 

Thanks.