On Fri, May 30, 2008 at 3:38 AM, Chris <dmagick@xxxxxxxxx> wrote:
> fseek doesn't go to the start of a line, it goes to a particular byte -
> so that's where the problem lies (not with fgets). There's no function
> (that I could see) which would go to the start of the line based on that
> offset (I guess you could fseek to a particular spot then reverse char
> by char until you find a newline - but that'll be rather slow for
> anything that has a long line).
>
>
> You could read the whole thing into an array and do a rand on that:
>
> $cities = file('filename.txt');
>
> // take 1 off from the max number as $cities is a 0 based array
> $number_of_cities = sizeof($cities) - 1;
>
> $city_number = rand(0, $number_of_cities);
> $city = $cities[$city_number];
>
> Though if you have a big file that reads the whole thing into memory etc.
>
I didn't say fseek() goes to the start of a line. I said that fgets()
should read a whole line, no matter where the pointer is at. I've
already managed to get the result I want by using file() as you've
suggested and array_rand(), and the result is very good.
I just need to figure out why when using fgets() with fseek() &
rand(), the script returns partial strings form the city names.
Regards,
Usamah
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