Hi.
I'm looking to process very large XML files without the need of first
downloading them.
To that end, SimpleXMLIterator('compress.zlib://http://www.site.com/products.xml.gz')
is working perfectly.
But a downside is that I have no information of my progress.
Is there any mechanism available to get a position within the XML stream?
I can use libxml_set_streams_context() to set a context (so I can
provide POST data if needed for the HTTP request), but I can't see how
to gain access to the stream within the libxml code (SimpleXML uses
libxml).
At the most basic, what I'm looking for is to be able to record a
percentage complete. Even with compression, I'll be reading some bytes
from a stream (either from http or from compress.zlib) and I want to
know where I am in that stream.
The HTTP header will tell me how big the file is (so that can easily
be a HEAD request to get that data).
Even if I DO save the file locally first, I still can't get a position.
If I use the SimpleXMLIterator::count() method, I am unsure as to what
will happen if I am using a stream (rather than a local file). If I
use ...
$xml = new SimpleXMLIterator(...);
$items = $xml->count();
foreach($xml as $s_Tag => $o_Item) {
...
}
will the XML file be cached somewhere? Or will that depend upon the
originating server supporting some sort of rewind/chunk mechanism?
Any suggestions/ideas?
Richard.
--
Richard Quadling
Twitter : EE : Zend : PHPDoc
@RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY : bit.ly/lFnVea
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