That's the culprit all right. And worse, it doesn't seem to be an arbitrary browser setting but an RFC convention for HTTP 1.1 - 2 connection limit to any server. According to Microsoft, changing it for IE even requires a registry hack. Thanks very much to all who contributed to this, and above all, my apologies to PHP! ""Albert"" <albert@xxxxxxxxxxxx> wrote in message news:014b01c607b6$cebb46e0$0464a8c0@xxxxxxxxx >> On 12/22/05, Ron Rudman <ron@xxxxxxxxxxxxx> wrote: >> >>>I've got this down to a bare bones test but am still stumped. Can anyone >>>explain why I get the behavior I do? >>> >>>I have a frameset with 3 frames: >>><html> >>><head><title>testing</title></head> >>><frameset rows='100,100,*'> >>> <frame src='test1.php'></frame> >>> <frame src='test2.php'></frame> >>> <frame src='test3.php'></frame> >>></frameset> >>></html> >>> >>>test1.php and test2.php are both simply: <? sleep(5); ?> >>>test3.php is simply: <? echo "This is some content"; ?> > > I tested this in both IE6 (6.0.2900.2180.xpsp.0503101-1521 to be exact) > and > Mozilla Firefox 1.0.6 on Windows XP SP2 running Apache 1.33 with PHP 4.3.9 > on the same machine. > > In IE the content of test3.php is displayed immediately and 5 seconds > later > the content of test1.php and test2.php (I've added an echo after the > sleep(5); to see what happens. > > In Mozilla it takes 5 seconds to display test3.php. When I put that frame > at > the top it displays immediately. If I put it in the middle it displays > immediately. > > What I do remember is that when I download multiple files (using IE or > Mozilla on WinXP) from the same server I can only do two downloads at a > time. I don't know if this is an OS setting. I did found a setting for IE > and changed that value to 5 so now I can download up to 5 files from the > same server at the same time. Don't know where to change it in Mozilla. > > It therefore seems that the browser makes a connection to the server for > the > first page and starts downloading it. At the same time it makes a > connection > to the server for the second page and starts downloading it. After one of > these two have downloaded it start downloading the third page. > > If you change the setting in the browser (like I did with IE) you can > download up to that number of pages at the same time. > > It is therefore not an issue with PHP but with the browser. > > HTH > > Albert > > (PS List replies only please!) > > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.1.371 / Virus Database: 267.14.5/212 - Release Date: 2005/12/23 > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
