[TYPO3-core] RFC #13998: Introduce Automatic versioning of CSS and JS files

[Jigal van Hemert]

Lars Houmark wrote:
>> could be just a $seperator = ($lookupFile[1]) ? '&' : '?';
>> IMO this is also faster
> 
> Maybe I did not understand the benchmarking of Jigal correctly, but else 
> will be the most common situation in this statement, and according to 
> him that is slower than having a normal if / else. I will keep it like 
> this for now, unless someone thinks it should be changed. I also like 
> ternary more myself so... :)

In a lot of cases you see something like
	$var .= (condition) ? 'value' : '';
I compared the speed of this with
	if (condition) {
		$var .= 'value';
	}

If the condition is true the ternary operator was a few percent slower 
(not significantly IMO) than the if statement.
If the condition is false the ternary operator was 30-40% slower than 
the if statement.

If the condition is a check for TYPO3_MODE == 'BE', it is very likely 
that the condition is almost always false. There is no operation in 
those cases and the ternary operator can only slow down the frontend.

Summary:
- the ternary operator is not faster than an if (-else) statement
- if either of the actions of the ternary operator results in no 
operation, the ternary operator is significantly slower for that action 
than an if statement

-- 
Jigal van Hemert
* please review #13940 *