Re: Parsing a large file

> On Fri, January 13, 2006 3:33 pm, Jay Paulson wrote: >> $buf = ""; > > Probably better to initialize it to an empty array();... Yep right. >> while (!feof($fhandle)) { >> $buf[] = fgets($fhandle); > > ... since you are going to initialize it to an array here anyway. > >> if ($i++ % 10 == 0) { > > Buffering 10 lines of text in PHP is probably not going to make a > significant difference... This is true. It's what I have written to start with. Basically I'm just trying to make sure that I'm not hogging system memory with a huge file b/c there are other apps running at the same time that need system resources as well. That's the main reason why I'm using a buffer to read the file in and parse it a little at a time. By all means test it out on your hardware and see what that buffer needs to be. > You'll have to test on your hardware to confirm, but between: > > 1. Low-level disk IDE buffer > 2. Operating System disk cache buffers > 3. C code of PHP source disk cache buffers > > your PHP 10-line buffer in an array > is probably more overhead, and much more complicted code to maintain, > with no significant benefit.