I have 2 or more strings, that I need to gather a common base from the beginning of the string. Here is how I do it: 
my @strings = (
'string that I need to gather the common base from: number 1 and some 
+other junk in it',
'string that I need to gather the common base from: number 2 and some 
+other junk in it',
'string that I need to gather the common base from: number 3 and some 
+other junk in it'
);
#After processing, I should get:
#'string that I need to gather the common base from: number '
my $string = '';

my ($match_string, @rest_strings) = @strings;
for my $string_idx (0..length($match_string)){
 if(scalar(@rest_strings) > (grep { substr($match_string, $string_idx,
+ 1) eq substr($_, $string_idx, 1) } @rest_strings)){
  $string = substr($match_string, 0, $string_idx);
  last;
 }
}

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I am wondering, if there is a better, a more efficient solution to it?

In reply to An efficient way to gather a common portion of several strings' beginnings by igoryonya

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