[phpXML] parsing large files -- another solution?

[<spr...@ho...>]

My first thought was to have a couple methods access and store content in a 
file until the full xml is requested. Then I realized doing that would not 
save much memory because the node structure is what's taking up so much 
space.

A previous post about phpxmldb got me thinking about the opposite of 
phpxmldb. How about creating an SQL schema that maps directly to phpxml's 
internal structure. That way, any XPath query can be easily converted to an 
SQL query. The initial parse of an XML file would be quite slow because of 
all the inserts it would require, but the speed of XPath queries would only 
be reduced by the time it takes for executing one sql query. The memory 
problem, which some developers cannot get around, could be eliminated this 
way.

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