Re: Re: Newbie question about <?= ?>

----- Original Message ----- From: "Stut" <stuttle@gmail.com> To: "Satyam" <Satyam@satyam.com.ar> Cc: <php-general@lists.php.net> Sent: Monday, September 11, 2006 6:32 PM Subject: Re: [PHP] Re: Newbie question about <?= ?>

Satyam wrote:

I admit I'm totally surprised about the buffered results. Nevertheless, may I sugest you add the following to the series of tests?:

       <h3>Using line-by-line single-quoted echo<br/>with comma separated

arguments</h3> <snip> There seems to be one thing rarely anybody remembers, echo admits multiple arguments, and as the numbers will show, (or at least they do in my machine), they are the second best option.

Done, but again it doesn't seem to make any significant difference to the performance. -Stut

When I run those tests locally, the numbers are totally different and the performance of one over the other comes out far clearer. I can only assume that the numbers in the test run in a remote server are so much influenced by the ability of the server to push out the characters into the output stream that the processing time itself is of very little relevance. This table shows the numbers for the different tests as run on my machine, locally (where output streaming is irrelevant) and run from your site:

Using <?=$x?>                                    Took 0.2801 seconds    Took

3.5937 seconds

Using <?php print $x; ?>        Took 0.3286 seconds    Took 5.2654 seconds

Using line-by-line single-quoted print:        Took 0.1215 seconds    Took

3.2256 seconds Using line-by-line single-quoted echo

with comma separated arguments        Took 0.2542 seconds    Took 3.2220

seconds

Using line-by-line double-quoted print     Took 0.1782 seconds    Took

3.3129 seconds

Using buffered single-quoted print    Took 0.0277 seconds    Took 3.3077

seconds

Using buffered double-quoted print    Took 0.2038 seconds Took 3.3012

seconds It would seem that it takes about 3 seconds to push those bytes into the network, the actual processing times get completely masked behind a simple glitch in the throughput of the communication line. While the differences on the rightmost column (except for the second one, which is way off) are no more than 5%, in the middle column the differences are up to 10 to 1. But then there is that second row, which is so much higher and it is so in both columns. Unfortunately, I cannot make much sense about all this. I don't get it. Nevertheless, something it is clear is that buffering all the output first and then pushing it out all at once seems to beat them all, specially using single quoted strings. Run locally, the differences are amazing! Satyam