[development] some performance notes

[Chris Johnson]

Tim Young wrote:
> Hi,
> 
> Interesting page but I don't see anything on in_array().  I think you 
> mean is_array()?
> 
> Tim
> 
> 
> Karoly Negyesi wrote:
> 
>> Hi!
>>
>> A while ago webchick pointed out 
>> http://www.php.lt/benchmark/phpbench.php  this site for me.
>>
>> The most striking difference is using in_array on a non-set variable. 
>> core  has 118 in_array calls :) some wanna check them?

I'll do it.

..chrisxj