On Wed, 15 May 2002, arnaud gonzales wrote:
> I'm newbie in php and i would like to clearly understand how can i use:
> LENGTH in string fgets ( int fp [, int length])
>
> "Returns a string of up to length - 1 bytes read from the file pointed to by
> fp. Reading ends when length - 1 bytes have been read, on a newline (which
> is included in the return value), or on EOF (whichever comes first). If no
> length is specified, the length defaults to 1k, or 1024 bytes."
>
> -Can i have an example of the differents way for reading file with fgets
> according to the differentes values of "length "?
> -why '4096' is used as length for reading a file line by line ?
>
> $fd = fopen ("/tmp/inputfile.txt", "r");
> while (!feof ($fd)) {
> $buffer = fgets($fd, 4096);
> echo $buffer;
> }
> fclose ($fd);
>
> Is this any max for one line??
The idea is to avoid runaway reads. This way if you get pointed to a file
that's a link to /dev/random, you won't blow through all your memory and
explode.
miguel
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