Hi

I have at least 3 challenges 1. My knowledge of perl is growing but not good, developing for 25+ years in a variety of other languages 2. I have been presented someone elses code to work on 3. Due to a new server I have had to upgrade perl from 5.8 to 5.16.0. Should be irrelevant but perl code runs and tests ok on 5.8, but not on 5.16

Below are code snippets. The code is passed xml, parses the data and then uses mysql to update a DB with the data. Tag keys are field names, Tag values are the data values. 
.......
use strict;
use XML::Simple;
....
sub updateRes($){
 my ($key,$tbl,$ds,$rv,$dbi,$dbu,$dbx,$dbd,@prms,@slct,$sql1,$sql2,$sq
+l3,$sql4,$sql5);

 foreach $key (keys %{$Xml->{data}}){
  $sql1.="`$key`,";$sql2.="`$key`=?,";$sql3.='?,';
 }

........

[download]

I am getting a "Not a HASH reference at ....pl line xx" error, generated by the foreach line above. From documentation I have found there seems to be a change from perl 5.8 to 5.16 with regards to HASH and the foreach. Does the change mean that code needs to change or is that a "red herring"? $Xml->data contains a number of xml tags and data values. perl is running on Linux Centos. Would appreciate any advice

In reply to Perl 5.8 to 5.16 and HASH error by robsgoingmad

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.