2008. 03. 28, péntek keltezéssel 09.00-kor Robert Cummings ezt írta: > On Fri, 2008-03-28 at 09:31 +0100, Zoltán Németh wrote: > > 2008. 03. 28, péntek keltezéssel 09.19-kor Zoltán Németh ezt írta: > > > 2008. 03. 27, csütörtök keltezéssel 10.21-kor Shawn McKenzie ezt írta: > > > > Jason Pruim wrote: > > > > > > > > > > On Mar 27, 2008, at 11:05 AM, Shawn McKenzie wrote: > > > > >> Al wrote: > > > > >>> Good point. I usually do use the single quotes, just happened to > > > > >>> key > > > > >>> doubles for the email. > > > > >>> > > > > >>> Actually, it's good idea for all variable assignments. > > > > >>> > > > > >>> Philip Thompson wrote: > > > > >>>> On Mar 26, 2008, at 6:28 PM, Al wrote: > > > > >>>>> Depends on the server and it's load. I've strung together some > > > > >>>>> rather large html strings and they aways take far less time than > > > > >>>>> the > > > > >>>>> transient time on the internet. I used to use OB extensively until > > > > >>>>> one day I took the time to measure the difference. I don't recall > > > > >>>>> the > > > > >>>>> numbers; but, I do recall it was not worth the slight extra > > > > >>>>> trouble > > > > >>>>> to use OB. > > > > >>>>> > > > > >>>>> Now, I simple assemble by html strings with $report .= "foo"; And > > > > >>>>> then echo $report at the end. It also makes the code very easy to > > > > >>>>> read and follow. > > > > >>>> > > > > >>>> You might as well take it a step further. Change the above to: > > > > >>>> > > > > >>>> $report .= 'foo'; > > > > >>>> > > > > >>>> This way for literal strings, the PHP parser doesn't have to > > > > >>>> evaluate > > > > >>>> this string to determine if anything needs to be translated (e.g., > > > > >>>> $report .= "I like to $foo"). A minimal speedup, but nonetheless... > > > > >>>> > > > > >>>> ~Philip > > > > >>>> > > > > >>>> > > > > >>>>> Andrew Ballard wrote: > > > > >>>>>> On Wed, Mar 26, 2008 at 1:18 PM, Al <[EMAIL PROTECTED]> wrote: > > > > >>>>>>> You are really asking an HTML question, if you think about it. > > > > >>>>>>> > > > > >>>>>>> At the PHP level, either use output buffering or assemble all > > > > >>>>>>> your > > > > >>>>>>> html string as a variable and > > > > >>>>>>> then echo it. The goal is to compress the string into the > > > > >>>>>>> minimum > > > > >>>>>>> number of packets. > > > > >>>>>> Yes, but do so smartly. Excessive string concatenation can slow > > > > >>>>>> things > > > > >>>>>> down as well. On most pages you probably won't notice much > > > > >>>>>> difference, > > > > >>>>>> but I have seen instances where the difference was painfully > > > > >>>>>> obvious. > > > > >>>>>> Andrew > > > > >> > > > > >> Yes and if your script takes .00000000000000000000000000000002 > > > > >> seconds > > > > >> to run using double quotes it will only take > > > > >> .000000000000000000000000000000019 seconds with single (depending > > > > >> upon > > > > >> how many quotes you have of course) :-) > > > > > > > > > > I'm coming in late to this thread so sorry if I missed this :) > > > > > > > > > > How much of a difference would it make if you have something like > > > > > this: > > > > > echo "$foo bar bar bar bar $foo $foo"; verses: echo $foo . "bar bar > > > > > bar > > > > > bar" . $foo $foo; ?In other words... You have a large application > > > > > which > > > > > is most likely to be faster? :) > > > > > > > > > > > > > > I would assume your 2 examples to be the same because the point is that > > > > the PHP interpreter must parse for vars to substitute when it encounters > > > > double-quotes whether there are any vars in it or not. With > > > > single-quotes the interpreter does not have to worry about it. > > > > Regardless, the speed diff is probably negligible, hence my flame > > > > inviting post. :-) > > > > > > > > ehh my answer is meant to be here: > > It's still wrong >:) > > > > > nope. it parses both, since you may have escaped characters within > > > single quotes too. so the difference only comes in when you actually > > > have a variable in the string. > > > > sorry its morning ;) > > Aaah, that's why you're confused :P
yeah maybe. you're right, the bytecode is the same. but somewhere I heard that the parsing is the same too - because escaped characters can be in any string, though I'm not that sure about this anymore, as my link proved something else ;) greets Zoltán Németh > > ;) > > Cheers, > Rob. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
