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Posted by Jerry Stuckle on 11/07/06 12:45
howa wrote:
> are there any advantage in replacing all fread() operations with
> file_get_contents() ?
>
> i.e.
>
> file_get_contents("/usr/local/something.txt")
>
> VS
>
> $filename = "/usr/local/something.txt";
> $handle = fopen($filename, "r");
> $contents = fread($handle, filesize($filename));
> fclose($handle);
>
> is that file_get_contents() is more efficient?
>
> thanks.
>
Like almost anything else in programming, "it depends".
file_get_contents() can be faster because it's a single call to read
the file. But it can also be slower - because it reads the entire
file into memory at one time.
If you're reading 5MB files, file_get_contents() will take something
more than 5MB of RAM. Stack a few of these up and you'll be using
a LOT of RAM - maybe too much and the system can start paging.
fread(), OTOH, only gets small amounts of data at a time. And yes,
for large files it can take longer than file_get_contents(), but for
small files I don't think you'll notice any difference.
If you're not having performance problems, I'd say don't worry about it.
If you are having performance problems, I suggest you figure out where
the real bottleneck is. I doubt it's in the use of fread().
--
==================
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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