[nflug] PHP (switch vs. nested if)

[Robert Meyer]

Well, if you write the code in C, just create an array of addresses of arrays and just directly access the array by position.  Then you don't even need any comparisons. :-)

Cheers!

Bob
 
--
"When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return."
   --Leonardo da Vinci

----- Original Message ----
From: Franklin Kumro Jr <fkumro at gmail.com>
To: nflug at nflug.org
Sent: Thursday, February 21, 2008 12:18:07 PM
Subject: Re: [nflug] PHP (switch vs. nested if)


I 
would 
agree 
that 
a 
switch 
statement 
would 
be 
the 
preferred 
method.  
Multiple 
nested 
if 
statements 
hurt 
code 
readability, 
let 
alone 
a 
1-80  
range.

-Frank
On 
Feb 
21, 
2008, 
at 
11:43 
AM, 
Timothy 
Finucane 
wrote:

> 
A 
switch 
is 
the 
most 
efficient 
method. 
I'm 
not 
sure 
how 
much 
speed  
> 
performance 
is 
affected, 
but 
nested 
ifs 
would 
make 
the 
code  
> 
difficult 
to 
read.
>
> 
-- 
> 
Timothy 
J. 
Finucane
>
> 
http://www.speljamr.com
>
> 
Facebook: 
http://www.facebook.com/p/Timothy_J_Finucane/682422189
>
>
>
> 
On 
2/21/08, 
Rob 
Dege 
<livemotion at gmail.com> 
wrote:
> 
Hi, 
I'm 
wondering 
which 
would 
provide 
faster 
processing 
time 
based  
> 
on 
the 
web 
page 
I'm 
building.
>
> 
I 
have 
a 
variable, 
let's 
call 
it 
$num.  
$num 
is 
an 
int 
that 
can 
be  
> 
anywhere 
from 
1 
to 
80.  
Based 
on 
$num's 
value, 
an 
array 
is 
assigned  
> 
that 
is 
then 
used 
on 
the 
web 
page.  
Since 
this 
is 
for 
a 
web 
page, 
I  
> 
want 
to 
minimize 
the 
wait 
time 
as 
much 
as 
possible, 
and 
I'm 
guessing  
> 
that 
this 
could 
be 
a 
potential 
bottleneck.  
I 
have 
not 
written 
the  
> 
code 
yet, 
so 
I 
can't 
compare 
load 
times.  
I'm 
considering 
this 
more  
> 
of 
a 
"do 
it 
the 
preferred 
way 
the 
first 
time".
>
> 
So 
I'm 
curious 
as 
to 
which 
would 
be 
faster, 
a 
simple 
switch 
with 
80  
> 
possible 
cases, 
or 
a 
"nested 
if" 
that 
uses 
a 
sorting 
algorithm;  
or  
> 
perhaps 
even 
more 
plausible, 
a 
combination 
of 
the 
two.
>
> 
Any 
random 
thoughts 
are 
appreciated 
:)
>
> 
-- 
> 
-Rob
>
> 
Ben 
Franklin 
Quote: 
"They 
that 
can 
give 
up 
essential 
liberty 
to  
> 
obtain 
a 
little 
temporary 
safety 
deserve 
neither 
liberty 
nor 
safety."
> 
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> 
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mailing 
list
> 
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> 
http://www.nflug.org/mailman/listinfo/nflug
>
>
>
>
>
> 
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> 
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> 
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> 
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