Posted by gosha bine on 05/21/07 08:39

On 19.05.2007 16:18 Schraalhans Keukenmeester wrote:
> At Sat, 19 May 2007 14:52:28 +0200, gosha bine let his monkeys type:
>
>> Ciaran wrote:
>>> Is there a more efficient way to write this:
>>> if($var=1 || $var=4 || $var=27 || $var=28 || $var=30 || $var=37 ||
>>> $var=38){echo "true";}
>>>
>>> Cheers,
>>> Ciarán
>>>
>> ='s should be == I guess
>>
>> if(in_array($var, array(1, 4 etc)))
>>
>> is perhaps shorter, but not "more efficient", so the answer is "no".
>
> If by 'more efficient' you mean 'executing faster', the answer is:
> It depends on array length.
> For short arrays in_array is slower, for long arrays it appears to be
> faster. (function call overhead becomes less of a factor I suppose)
>
> Sh.
>

'more efficient' means 'runs faster' and 'uses less memory'. I think
'or' code will win in both categories.


--
gosha bine

extended php parser ~ http://code.google.com/p/pihipi
blok ~ http://www.tagarga.com/blok

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