Question

I’m really new to Perl and a first timer to XML::Simple.

I have a foreach loop (XML data already fed into $xmlHash)

foreach (@{$xmlHash->{$PROTEIN}->{$PEPTIDE}}) {}

That works 90 times when the $peptide key contains a multiple peptides. However, protein 91 (and many others after) have only a single peptide (a scalar value), which causes perl to throw

Not an ARRAY reference at C:\...

What is the best way to make the foreach loop also work with scalar $PEPTIDES?

Answer 1

See ForceArray in XML::Simple documentation.