which is fastest?

[Fyorl]

I was just wondering if anyone was in a good position to test whether [code]func_num_args()[/code] is faster than [code]count(func_get_args())[/code]

(They come in very useful for creating functions with default values)
Anyway, I would assume the former as it's only one function call but I could be wrong as I don't know the inner workings of it.

[xyph]

My guess would be in agreement with yours...

The 2nd function you're building an array simply to count it. Could be wrong though.

I doubt the difference in speed would be huge unless dealing with a very very large function.

[poirot]

I guess func_num_args() is faster. It's just a guess though.
You can test that by yourself, just time it like this:

[code]$time1 = microtime(true);
// Do method1 here
$time2 = microtime(true);
// Do method2 here
$time3 = microtime(true);

echo 'Method 1: ' . ($time2 - $time1);
echo 'Method 2: ' . ($time3 - $time2);[/code]

[xyph]

Remember to do the testing on a large scale, otherwise the results will be useless.

[Fyorl]

Thanks guys, I've got a PHP 4 server and PHP 5 on my linux laptop so I'll do a test on there. Just one question, wouldn't testing on a 'large scale' involve passing many, many arguments to a function?