using an array as a reference is deprecated in perl - perl

Question

Getting below Error: using an array as a reference is deprecated in perl script at line
Please Suggest, What is wrong in below code.
$sqlsyntax="exec Stored_Procedure,\#ErroeCode='$ErrMsg`";
#ret = $dbh->nsql ($sqlsyntax,"ARRAY");
my($EntityId,
$MaturutyDate);
my($size,$index,$count);
$size=scalar #ret;
$index=0;
$EntityId=#ret->[$index][0];
$MaturutyDate=#ret->[$index][9];
This perl is working fine in Solaris but when same is migrated to Linux environment, it is giving this error.
Getting below Error: using an array as a reference is deprecated in perl script at line
During Compilation it is giving this error, Want to fix this in Linux environment.

Answer 1

I'm not sure where you're getting this code from, but it uses a very old version of Perl syntax that you shouldn't have been using for a very long time. [Update: As ikegami points out in a comment below, this isn't very old Perl syntax - it's syntax that only worked because of a bug in Perl and which shouldn't have ever been used.]
#ret->[$index][0]
This code uses the fact that an array can (in certain circumstances) be used as an array reference. You should not do this, as there are other (simpler) ways to do the same thing. This syntax is, as you see, deprecated.
Your code should be written as $ret[$index][0]. If you change it to be like this, then the warnings will go away.
Update:
This perl is working fine in Solaris but when same is migrated to Linux environment, it is giving this error.
I imagine that's because your Solaris system is running a far older version of Perl. What do you get from running perl -v on both of your systems?