| Re: Using a single php entry file for a whole site. [message #181892 is a reply to message #181889] |
Fri, 21 June 2013 09:08   |
Tim Streater
Messages: 328
Registered: September 2010
Karma:
|
Senior Member |
|
|
In article <kq0sqh$vlb$1(at)news(dot)albasani(dot)net>,
The Natural Philosopher <tnp(at)invalid(dot)invalid> wrote:
> On 20/06/13 23:50, Christoph Michael Becker wrote:
>> Am 21.06.2013 00:33, schrieb Marc van Lieshout:
>>> Why is using ob_start() poor programming?
>>> The pair ob_start/ob_get_clean captures the contents of the page in the
>>> $contents variable.
>> This discussion may well end in a flame war. What is faster: echoing
>> with output buffering vs. concatening strings with the dot operator?
>>
>> ISTM all depends on the implementation. AFAIK string concatenation is a
>> very cheap operation in Python, for instance, as the string is not
>> actually built (merely a "pseudo" string containing links to the
>> concatenated strings). In other languages such as PHP, the characters
>> have to be copied over to a new string, AFAIK. This probably makes
>> output buffering faster, but the performance difference may be
>> neglectable for typical cases. And one never knows, if the
>> implementation might change in the future.
>>
> And the killer point, it is in terms of the overall site, the least of
> ones worries.
>
> By far and away the biggest performance killer is accessing and
> streaming large objects. Generally graphics and videos.
>
> or downloading massive JavaScript includes.
>
> I've got one site which auto refreshes a page, I expected it to be
> massively hungry as its pretty popular, but somehow if the images
> haven't changed or the page hasn't changed it manages to only send the
> bits that have changed.
Isn't that just my browser caching stuff? If I've restarted Safari or
rebooted (less likely) or just cleared the cache by hand it's gonna need
to get it all next time I have a look.
--
Tim
"That excessive bail ought not to be required, nor excessive fines imposed,
nor cruel and unusual punishments inflicted" -- Bill of Rights 1689
|
|
|
|
Calendar
Search
Help
Members
Register
Login
Home
]