here the tags are changed their places
What did you expect? A hash will associate a key with a value; its purpose is not to preserve a sequence which for a hash has no meaning.

From the XML::Simple::FAQ:

My element order is getting jumbled up

If you read an XML file with XMLin() and then write it back out with XMLout(), the order of the elements will likely be different. (However, if you read the file back in with XMLin() you'll get the same Perl data structure).

The reordering happens because XML::Simple uses hashrefs to store your data and Perl hashes do not really have any order.

It is possible that a future version of XML::Simple will use Tie::IxHash to store the data in hashrefs which do retain the order. However this will not fix all cases of element order being lost.

If your application really is sensitive to element order, don't use XML::Simple (and don't put order-sensitive values in attributes).

Update: added quote from FAQ

PS: please only show the code relevant to your problem (i.e. in this case the first ten lines) and restrict your data to a minimal but still relevant sample.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

In reply to Re: hash sequence error by CountZero
in thread hash sequence error by satzbu

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