Does a PHP per-function (or per-task) performance / benchmark reference exist?

I'm running m开发者_如何学Pythony own (albeit, basic) benchmarks in a linux-based sandbox. However, I'd love to find a per-function or per-task performance / benchmark reference or utility for comparison.

Does this exist?

Of course I've done my own fair diligence / searching and have so far come up empty handed..

(I'm primarily interested in information relevant to PHP 5.3)

Thanks very much! :)

You can use a profiler to evaluate which function calls are more costly.

XDebug can also provide log files that you can later load into KCacheGrind to get a nice tree output of what time was spent where in your code.

Googling brings up the two I know best:

• The PHP Benchmark
• PHP Benchmarks

they don't do function benchmarks, though, they mostly just compare language constructs. I know at least one good site that also tests file I/O operations and the like, but I forgot the URL. I really need a central link repository :)

Update: This looks interesting, can't take a deeper look right now but there seems to be a number of interesting tests.

It doesn't contain any specific times, but it does have the Big-O for a number of array_* functions.

List of Big-O for PHP functions