As many of you good monks know, I am learning PERL as a beginner.
I am learning the split function just now and have found code on Progeek that I do not understand. 
# Perl program to demonstrate the  
# splitting into the hash 
  
#!/usr/bin/perl 
use strict; 
use warnings; 
  
# hash to be split 
my $has = 'GFG=1;GEEKS=2;PROGEEK=3'; 
  
# using split function 
my %spl = split(/[=;]/, $has); 
  
# after splitting displaying the values 
foreach my $i (keys %spl)  
{ 
    print "$i:$spl{$i}\n"; 
}

[download]

in the line: my %spl = split(/[=;]/, $has);

What does the [=;] mean ?
if this code is splitting $has for the words, why not use split(/[=1;]/) ?
also where does $i and $spl come from ?

Thankyou

In reply to What does [=;] mean by Scotmonk

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