Re: Files passing through

Richard Lynch wrote:

On Tue, August 23, 2005 12:48 am, Jasper Bryant-Greene wrote:

Kim Steinhaug (php list) wrote:

I'm using this method, works fine with 50mb+ files : if( $fd = fopen ($filepath, 'r')){

     while(!feof($fd)) {
       $buffer = fread($fd, 2048);
       print $buffer;
     }
     fclose ($fd);
     exit;

}

Is there a reason why you assign the output of fread() to a variable and then print it? Why not just: print(fread($fd, 2048)); which would be faster because it doesn't need to assign to a variable, wouldn't it? Maybe I'm missing something..

You're not missing anything, but a 2 K string buffer assignment/print is probably not gonna save much... Benchmark it both ways and see.

I benched this with a 100 MiB text file (largest I could find at short notice). Buffer used for fread() calls was 2 KiB as above. Values are averaged over 100 runs (I would have liked to do more, but I don't have time). All values are to 4 significant figures. Assigning to a variable and then printing took 0.5206 sec Printing directly without assigning to any variable took 0.5178 sec readfile() took 0.4632 sec print(file_get_contents()) took 0.7037 sec Therefore, readfile() is the fastest, print(file_get_contents()) most definitely the slowest, and it makes ****-all difference between assigning the buffer to a variable and not, at least for files around 100 MiB. Jasper