Re: How to jump to line number in large file

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Thanks for the heads up on fgetc() incrementing by one. I hadn't actually 
tested that code yet, I was using the original fseek($handle,$pos).

strpos would be ideal but it needs to work on a string and not a file - I 
don't want to load a 100Mb file into memory if I don't have to. Perhaps I 
should test how quick the fgets() and ftell() method is because at least it 
loads in one line at a time.

Does anybody know any other ways to go about the problem?

Many thanks,
Steve

""Greg Bowser"" <topnotcher@xxxxxxxxx> wrote in message 
news:9ed554210804041656m1533cd2dkf9bdeb0116a3d563@xxxxxxxxxxxxxxxxx
> fseek($handle, 1, SEEK_CUR);         // or fseek($handle, $pos)
>  $t = fgetc($handle);
>
> This probably won't help you, but given a quick glance, it looks like 
> you're
> incrementing the file pointer by 2 positions on each iteration of your 
> while
> loop. The fgetc() function returns the character at the current position 
> and
> increments the file pointer by 1.
>
> I haven't tried this, but perhaps using strpos would be faster? Use strpos
> to seek to find the first "\n", then use the offset parameter to seek to 
> the
> second, and so on, until strpos() returns false.
>
> --GREG
> 



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