Comments on: Determine connection speed with php http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/ italian geek and PROgrammer Wed, 17 Mar 2010 22:10:20 +0000 http://wordpress.org/?v=abc hourly 1 By: Dennis Dykstra http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/comment-page-1/#comment-529357 Dennis Dykstra Mon, 07 Dec 2009 16:18:40 +0000 http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/#comment-529357 This seems like a useful approach. I've been trying to distinguish between dialup and broadband users in order to avoid sending a lot of images to a slow dialup line. However, when I use the PHP script on a dialup line (actual connection speeds between 45.2 and 50.6 Kbps), I get an odd result: the reported connection speed with your script ranges between 20 and 140 Kbps, with an average of nearly 100 Kbps. Why do you think it's so high? What is it measuring, if not the actual time to send the 512 KB to the browser? This seems like a useful approach. I’ve been trying to distinguish between dialup and broadband users in order to avoid sending a lot of images to a slow dialup line. However, when I use the PHP script on a dialup line (actual connection speeds between 45.2 and 50.6 Kbps), I get an odd result: the reported connection speed with your script ranges between 20 and 140 Kbps, with an average of nearly 100 Kbps. Why do you think it’s so high? What is it measuring, if not the actual time to send the 512 KB to the browser?

]]> By: mark_valley http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/comment-page-1/#comment-462950 mark_valley Fri, 19 Jun 2009 17:23:26 +0000 http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/#comment-462950 Nice script! Of course the result depends on the server's location. I adjusted it a bit for my needs. Instead of echoing each character, i build a randon string whith size $kb and echo it. Something like that: ------------------------------------------------- for($x = 0; $x < ($kb * 1024); $x++) { $data .= chr(rand(97, 97+20)); } flush(); $time = explode(" ",microtime()); $start = $time[0] + $time[1]; echo ""; $time = explode(" ",microtime()); $finish = $time[0] + $time[1]; ---------------------------------------------------- Nice script! Of course the result depends on the server’s location.

I adjusted it a bit for my needs. Instead of echoing each character, i build a randon string whith size $kb and echo it. Something like that:

————————————————-

for($x = 0; $x < ($kb * 1024); $x++)
{
$data .= chr(rand(97, 97+20));
}
flush();

$time = explode(" ",microtime());
$start = $time[0] + $time[1];

echo "”;

$time = explode(” “,microtime());
$finish = $time[0] + $time[1];

—————————————————-

]]> By: Ezekiel http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/comment-page-1/#comment-425707 Ezekiel Tue, 07 Apr 2009 13:18:06 +0000 http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/#comment-425707 This script is very useful, I am going to test it. Definitely the location of the server will affect the results. My recommendation is that if users want to test the speed of their links (as given by ISPs) then they should test with a website resident at the ISP. This means you will be testing only the path from you to the ISP, excluding all the unnecessary hops. I will further develop it, nice starting point. This script is very useful, I am going to test it. Definitely the location of the server will affect the results. My recommendation is that if users want to test the speed of their links (as given by ISPs) then they should test with a website resident at the ISP. This means you will be testing only the path from you to the ISP, excluding all the unnecessary hops. I will further develop it, nice starting point.

]]> By: Paul Romein http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/comment-page-1/#comment-355738 Paul Romein Wed, 17 Dec 2008 09:30:25 +0000 http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/#comment-355738 It looks like what it's grabbing is the user's upload speed. This can be helpful to get a guestimate on the pipe, but on a quick Google search for a tool like it, it's not bad. Just needs to explain that it's the users' upload speed, not the user's download speed. It looks like what it’s grabbing is the user’s upload speed. This can be helpful to get a guestimate on the pipe, but on a quick Google search for a tool like it, it’s not bad. Just needs to explain that it’s the users’ upload speed, not the user’s download speed.

]]> By: Robert http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/comment-page-1/#comment-332422 Robert Thu, 13 Nov 2008 14:41:46 +0000 http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/#comment-332422 Can tipi please email that code; or can you post it here? or can someone who has it send it me? rgray001@googlemail.com regards Can tipi please email that code; or can you post it here?

or can someone who has it send it me?
rgray001@googlemail.com
regards

]]> By: saki http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/comment-page-1/#comment-223875 saki Thu, 10 Jul 2008 09:22:52 +0000 http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/#comment-223875 tippi plz post the code na.. which gives internet speed of the client usiing php script.. this script didnt work.. when kept in the server.. :( tippi plz post the code na.. which gives internet speed of the client usiing php script.. this script didnt work.. when kept in the server.. :(

]]> By: getpr http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/comment-page-1/#comment-117798 getpr Wed, 16 Apr 2008 07:39:54 +0000 http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/#comment-117798 This can be fixed, i have rewritten you code with some of mine, basiclly you should set the timestamps just before and after the echo. Becuse 1024 bytes for sure can be delivered at max speed with the any connection today, 512kb can’t :) This can be fixed, i have rewritten you code with some of mine, basiclly you should set the timestamps just before and after the echo.
Becuse 1024 bytes for sure can be delivered at max speed with the any connection today, 512kb can’t :)

]]> By: Determine connection speed http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/comment-page-1/#comment-108847 Determine connection speed Sat, 05 Apr 2008 22:49:51 +0000 http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/#comment-108847 determine connection is easy to find with above written code determine connection is easy to find with above written code

]]> By: deo http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/comment-page-1/#comment-56943 deo Fri, 07 Dec 2007 02:42:23 +0000 http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/#comment-56943 how about to determine my connection to a web server?? Tippi post your code, please. how about to determine my connection to a web server?? Tippi post your code, please.

]]> By: RR http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/comment-page-1/#comment-43238 RR Sun, 21 Oct 2007 13:48:36 +0000 http://www.emanueleferonato.com/2006/05/31/determine-connection-speed-with-php/#comment-43238 Tippi: can you please post the code? Tippi: can you please post the code?

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