Re: [PHP-DEV] Tie'ing variables

    Can't those long names be gone in PHP 5 anyway..? 
    Having YASIO is not fun. :)
    
    --Jani
    



On Sun, 2 Mar 2003, Zeev Suraski wrote:

>I wanted to do this for some time, but until recently, it wasn't very 
>feasible, because the order of registration could be designated by the user 
>(gpc_order, variables_order, etc.).  Now that register_globals is off by 
>default, and that we have the auto-globals, it's much more feasible.
>
>I implemented this optimization in CVS, so far only for $_ENV and 
>$_SERVER.  This alone pushed nearly-empty-page req/sec pages from about 285 
>to about 400 on my Windows box.  I'll look into fixing the other ones later.
>
>Pre-requisites for this optimization to kick in:
>1.  register_globals being off
>2.  register_long_arrays (HTTP_*_VARS) being off
>
>If you want to benchmark w/ vs. w/o, you can disable the optimization by 
>initializing cb to 0 in php_startup_auto_globals() and jit_initialization 
>to 0 in php_hash_environment(), both in main/php_variables.c.
>
>Zeev
>
>At 18:26 01/03/2003, Sterling Hughes wrote:
>>Hi,
>>
>>Analyzing PHP's routines a bit, it seems that the slowest part of a
>>"generic" request is populating the special arrays, $_ENV, $_GET, etc.
>>
>>I was wondering if it might be possible to "tie" these arrays to a
>>function (if you don't understand that, look at Perl for a definition).
>>One could populate them as an overloaded object, and then array accesses
>>would work - I guess.  But I would prefer a cleaner mechanism.
>>
>>This would prevent a costly overhead for elements that don't really need
>>to be there, and yield only a slight performance cost when accessing
>>overloaded elements in these arrays.
>>
>>-Sterling
>>
>>--
>>"The computer programmer is a creator of universes for which he
>>  alone is responsible. Universes of virtually unlimited complexity
>>  can be created in the form of computer programs."
>>     - Joseph Weizenbaum
>>
>>
>>--
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>
>
>

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