performance issues sorrounding the use of multiple includes

[monomaniac21]

hi all

can anyone tell me what the performance implications are of using
multiple includes on a page. do includes increase performance in
anyway? do they make a signifcantly negative impact? or is it negligible

[Jerry Stuckle]

monomaniac21 wrote:

hi all

can anyone tell me what the performance implications are of using
multiple includes on a page. do includes increase performance in
anyway? do they make a signifcantly negative impact? or is it negligible

Well, obviously there is some impact - PHP has to call the OS to load a
new file, after all. But the overhead for parsing the file will be the
same once it's loaded.

If you're running that close to the limit that a few includes worry you,
you need a faster server (or multiple servers).

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[monomaniac21]

If you're running that close to the limit that a few includes worry you,
you need a faster server (or multiple servers).

sorry i didnt make myself clear. say for example you have 30 incudes
occuring in while loops pulling only a few scripts. is this going to be
much slower than having the code (which isnt that big) in there instead?

[larry]

monomaniac21 wrote:

If you're running that close to the limit that a few includes worry you,
you need a faster server (or multiple servers).

sorry i didnt make myself clear. say for example you have 30 incudes
occuring in while loops pulling only a few scripts. is this going to be
much slower than having the code (which isnt that big) in there instead?

Sounds like you need to make the 'included' script into a function and
then use an include once at the beginning and call the function when
needed, doing it the other way will definately be slower as you repeat
all that code in your script 30 times as well as fetch it 30 times.

Larry

[Jerry Stuckle]

monomaniac21 wrote:

>>If you're running that close to the limit that a few includes worry you,
you need a faster server (or multiple servers).

sorry i didnt make myself clear. say for example you have 30 incudes
occuring in while loops pulling only a few scripts. is this going to be
much slower than having the code (which isnt that big) in there instead?

You should never need to include the same file more than once in another
file. If you do you should rethink your logic.

Larry's right - put the code in a function, include it once and call the
function multiple times if necessary.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================