included files

Anon

Hi there.

I am used to make dynamic includes in my php script.

let's supose I include math.php in my script if $operation="arithmetic" and only in that case.

so I write:
if ($operation=="arithmetic") include("./include/math.php");

I'd like to know your opinions in:
is this stylistically correct?
Does it affect Apache performance? (the php script has different size in every execution)
* Does it supose more time for apache web server to read the entire file with all includes or determine which one should be included and read them??

Thanks in advance.

-sam-

Anon

Hi, I dont know if it will affect Apache performance but it will not work.

From php.net manual:
/ This is WRONG and will not work as desired. /

if ($condition)
include($file);
else
include($other);

/ This is CORRECT. /

if ($condition) {
include($file);
} else {
include($other);

}

-rolf

Anon

Sure that should work. Yes, there is always a performance hit for an if statement (or for any conditional for that matter), but you'll never notice it.

Anon

Well the manual sais you have to include the curly brackets {}...

--rolf

Anon

That's unusually nice of them. I'll have to see if it's actually enforced.

Anon

What do you mean with:"That's unusually nice of them. I'll have to see if it's actually enforced."

Yes, I know I forgot the {}.

Basically what I meant was if it's noticeable a performance loss when include files dynamicaly rather than doing it at the beginning of the script.

Thaaanks 🙂

sam

Ken wrote:

That's unusually nice of them. I'll have to see if it's actually enforced.