Do them all at once. 
use strict;
use warnings;
my %replacement = (
    '?a?' => 'aRep',
    '?b?' => 'bRep',
    '?c?' => 'cRep',
);
my $regex = join '|', keys %replacement;
$regex =~ s/\?/\\\?/g;

my $string = '?a? ?b? ?c?';
print "old string: $string\n";
$string =~ s/($regex)/$replacement{$1}/ge;
print "new string: $string\n";

[download]
Bill

In reply to Re: Replace multiple strings in a string by BillKSmith
in thread Replace multiple strings in a string by Axlex

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