RE: [PHP] Issue with virtual() calls...
To view the terms under which this email is distributed, please go to http://disclaimer.leedsmet.ac.uk/email.htm On 21 January 2005 22:01, Potter, Jeff wrote: Hello, Could someone help me understand why later versions of PHP (4.3.9, 4.3.10, 5.0.3) do not maintain the same ordering for virtual() call output as the older versions? Sounds like a known bug, which should already be fixed for future versions; see http://bugs.php.net/bug.php?id=30446 for more details. Cheers! Mike - Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning Information Services, JG125, James Graham Building, Leeds Metropolitan University, Headingley Campus, LEEDS, LS6 3QS, United Kingdom Email: [EMAIL PROTECTED] Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Issue with virtual() calls...
Hi Mike, I would seem so, but the patch (in snapshot php4-200501201930) only seems to work when the output_buffering is set to 0. With output_buffering set to the default 4096, the virtual() calls are sent to the browser out of order. The concern with turning the output buffering off is that the performance will drop off, or there will be an increase in resource utilization, etc. The pages and configuration that are not rendering properly under PHP 4.3.9 have been QA tested without this issue in PHP 4.3.7 for months, and seem to work fine in PHP 4.3.8. Any advice or guidance would be appreciated. Thanks, JP -Original Message- From: Ford, Mike [mailto:[EMAIL PROTECTED] Sent: Monday, January 24, 2005 6:40 AM To: Potter, Jeff; php-general@lists.php.net Subject: RE: [PHP] Issue with virtual() calls... To view the terms under which this email is distributed, please go to http://disclaimer.leedsmet.ac.uk/email.htm On 21 January 2005 22:01, Potter, Jeff wrote: Hello, Could someone help me understand why later versions of PHP (4.3.9, 4.3.10, 5.0.3) do not maintain the same ordering for virtual() call output as the older versions? Sounds like a known bug, which should already be fixed for future versions; see http://bugs.php.net/bug.php?id=30446 for more details. Cheers! Mike - Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning Information Services, JG125, James Graham Building, Leeds Metropolitan University, Headingley Campus, LEEDS, LS6 3QS, United Kingdom Email: [EMAIL PROTECTED] Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Issue with virtual() calls...
To view the terms under which this email is distributed, please go to http://disclaimer.leedsmet.ac.uk/email.htm On 24 January 2005 16:42, Potter, Jeff wrote: Hi Mike, I would seem so, but the patch (in snapshot php4-200501201930) only seems to work when the output_buffering is set to 0. With output_buffering set to the default 4096, the virtual() calls are sent to the browser out of order. The concern with turning the output buffering off is that the performance will drop off, or there will be an increase in resource utilization, etc. The pages and configuration that are not rendering properly under PHP 4.3.9 have been QA tested without this issue in PHP 4.3.7 for months, and seem to work fine in PHP 4.3.8. Any advice or guidance would be appreciated. There's been a fix to the fix today which may or may not have some bearing on this (I haven't looked at it in detail, and probably wouldn't understand it if I did!) -- so look for a snapshot dated after about 200501241155. Cheers! Mike - Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning Information Services, JG125, James Graham Building, Leeds Metropolitan University, Headingley Campus, LEEDS, LS6 3QS, United Kingdom Email: [EMAIL PROTECTED] Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Issue with virtual() calls...
Potter, Jeff wrote: is still broken on others. The content generated from the virtual() call inside a page ends up in the browser before the opening HTML tag. See the simplified example below: Work-Around: Until you get this hammered out, you could use file_get_contents() with a URL instead. Granted, it's not an Apache sub-request, and it goes in the access_log, so it's not THE SAME as virtual(), but your HTML output will be correct, at least... I'm guessing that performance will suffer slightly, as chewing up a whole 'nother HTTP connection is probably a bit more expensive than a sub-request... Or maybe not. You'll have to test on your server to find out. -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Issue with virtual() calls...
Mike, Thanks for the information. The php4-200501241930 snapshot works much better... It looks like Joe Orton's ap_rflush() fix works with output buffering turned on (output_buffering = 4096). Regards, JP -Original Message- From: Ford, Mike [mailto:[EMAIL PROTECTED] Sent: Monday, January 24, 2005 1:09 PM To: Potter, Jeff; php-general@lists.php.net Subject: RE: [PHP] Issue with virtual() calls... To view the terms under which this email is distributed, please go to http://disclaimer.leedsmet.ac.uk/email.htm On 24 January 2005 16:42, Potter, Jeff wrote: Hi Mike, I would seem so, but the patch (in snapshot php4-200501201930) only seems to work when the output_buffering is set to 0. With output_buffering set to the default 4096, the virtual() calls are sent to the browser out of order. The concern with turning the output buffering off is that the performance will drop off, or there will be an increase in resource utilization, etc. The pages and configuration that are not rendering properly under PHP 4.3.9 have been QA tested without this issue in PHP 4.3.7 for months, and seem to work fine in PHP 4.3.8. Any advice or guidance would be appreciated. There's been a fix to the fix today which may or may not have some bearing on this (I haven't looked at it in detail, and probably wouldn't understand it if I did!) -- so look for a snapshot dated after about 200501241155. Cheers! Mike - Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning Information Services, JG125, James Graham Building, Leeds Metropolitan University, Headingley Campus, LEEDS, LS6 3QS, United Kingdom Email: [EMAIL PROTECTED] Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Issue with virtual() calls...
Hello,
Could someone help me understand why later versions of PHP (4.3.9,
4.3.10, 5.0.3) do not maintain the same
ordering for virtual() call output as the older versions? Basically,
generated pages that worked in
PHP 4.3.7 PHP 4.3.8 are now broken. Setting the output_buffering=0
seems to help on some pages, but it
is still broken on others. The content generated from the virtual()
call inside a page ends up in the browser
before the opening HTML tag. See the simplified example below:
Source page:
html
head
style type=text/css
?php require ./glob.css ?
/style
meta http-equiv=pragma content=no-cache
script
?php
virtual('chp.js') ;
virtual('/hostinfo/getinfo');
?
...
Expected in the browser:
html
head
style type=text/css
BODY { font-famliy:Veranda }
.pageheader { font-size:12 }
/style
meta http-equiv=pragma content=no-cache
script
!-- begin content from virtual chp.js.en (about 5569 bytes of
javascript) --
var moo=3;
function pagein()
{
var rc=false;
retrun rc;
}
!-- end content from virtual chp.js.en --
!-- begin content from virtual /hostinfo/getname --
var myhostname=This computer is localhost.localdomain;
var myipaddress=127.0.0.1;
!-- end content from virtual /hostname/getname --
...
Actually in the browser:
!-- begin content from virtual chp.js.en (about 5569 bytes of
javascript) --
var moo=3;
function pagein()
{
var rc=false;
retrun rc;
}
!-- end content from virtual chp.js.en --
html
head
style type=text/css
BODY { font-famliy:Veranda }
.pageheader { font-size:12 }
/style
meta http-equiv=pragma content=no-cache
script
!-- begin content from virtual /hostinfo/getname --
var myhostname=This computer is localhost.localdomain;
var myipaddress=127.0.0.1;
!-- end content from virtual /hostname/getname --
...
So, what changed in the output buffering between 4.3.8 and 4.3.9? Are
there any settings or coding practices
that would force the virtual calls out in the proper order within a
page? The php4-200501201930 snapshot
with output_buffering=0 seems to work the best, but this new behavior
seems to be a bug. There are similar reports
#30446, #31594, and #30811. Please advise.
Thanks,
JP
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