removing lines from files

Spoiler

I want to take a line from a file, process it in some way, remove it from the file, then put it in another file.

The reason is that I have 13000+ lines to process and I expect it will timeout. As the processed lines have been removed I can simply run the page again and resume from where I left off.

Only problem is that I have no idea how to remove a line.

juschillinnow

do you know what lines you need to remove:

like the line #, or
are the lines equal to something:

like remove lines that contain "!@#"?

You will probably need some kinda delimitor to remove them.

$file_name = "my_file.txt";
$file = fopen($file_name, 'r');
foreach($file as $new)
{
if($new == '!@#'){}
else{
$new_file = $new_file."<br>".new;
}
}

something like that should work.

Spoiler

I just want to go through one line at a time, starting at the begining or end of file makes no odds as long as the lines get removed.

jamey

If you're worried about the timeout, just reset the timeout limit to a longer time (as long as you're not using safemode) and then run your script as if you had a short file already. Start it up and relax while it runs.

http://www.php.net/manual/en/function.set-time-limit.php

Spoiler

that would do it. thanks a lot.

jamey

No problem, I'm glad I could help.