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If all the OP's examples use the global $_ then printing it at the end would show the last value assigned. What actually happens is a warning for 'Use of uninitialized value $_ ...' The subroutine uses whatever $_ that is in scope when it is called.

use warnings; use strict; sub abc() { $_ = 'x'; } foreach(1..2) { my $loopvar = 'in the loop'; print "Before:$_\n"; abc(); print "After:$_\n"; } print "\$_ = $_\n"; # warning for uninitialized value $_ (global scop +e) abc(); print "\$_ = $_\n"; # prints $_ = x

In reply to Re^2: What is the scope of $_? by Lotus1
in thread What is the scope of $_? by Anonymous Monk

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