RE: [PHP] calculate download time

Scott, All your method does is come up with how many kb/s you would need to achieve to transfer the file in 1 minute. To estimate how long it would take with a 28.8 modem connection (many sites do this), I would do something like the following: -- 28.8Kbps Modem (that's kilobit, not byte, so let's convert it to KB) ( 28800 / 8 ) / 1024 = 3.515625 -- So, we assume a transfer rate of approx. 3.5KB/sec ( y / 3.5 ) / 60 = x x is how many minutes it will take to transfer a file of size y using a 28.8 Kbps modem. -----Original Message----- From: scott [gts] [mailto:scott@graphictype.com] Sent: Thursday, June 28, 2001 10:42 AM To: php Subject: RE: [PHP] calculate download time simple. get total KB (1k = 1024 bytes) divide that by 60 (seconds in a minute) now you have estimated transfer time in minutes. > -----Original Message----- > From: Rhett Hermer [mailto:rhetth@info-logic.co.za] > Subject: [PHP] calculate download time > > Hi, > > I am trying to write code to find out how long it takes to download a file. > The code is below. When I compare to other websites which you can calculate > online, varies wildly. I do know about many factors that affect the > download times. All I want is correct forumla to caclulate. > > $b = filesize("foo.zip"); > echo "<br>It will take you:<br>"; > $dl = (($b * 8) / (64*1000)); > $sec = $dl % 60; > $min = (($dl / 3600) % 60); > $hrs = $dl / 3600; > printf ("%1.0f hours, %1.0f mins and %1.0f secs at 64k/s<br>", $hrs, $min, > $sec); -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net For additional commands, e-mail: php-general-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net