Hi--

I've written a script using XML-Twig and it works as planned. But as I am running the script I see a huge amount of memory being used and the processing time taking longer and longer. This is particularly true when the XML tree gets larger and larger.

Sample XML

<root>
    <typeA>...</typeA>
    <typeB>...</typeB>
    <typeC>target</typeC>
    <typeD>...</typeD>
</root>

[download]

I'm processing the tree via TwigRoots (no manipulations) by performing a top-down scan using find_nodes, then foreach'ing each of the returned array items. Once I find <typeC> in the tree, everything above the node is irrelevant. Within <typeC>, as I loop through and process it's children, I can purge each child when I proceed to the next one.

Is there a way to do this during the foreach loop?

I've tried purging/disposing of the tree when I am done using it, but none of the memory gets freed.

I guess what I'm looking for is a way to treat the XML as a file, where I can read a line at a time and process it without gulping the whole into memory first (which is what I think Twig is doing).

Thanks.

In reply to XML-Twig: more efficient tree processing by zuma53

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