$value = "four";
my @array = ( "one", "two", "three" );

foreach $value (@array)
{
    print "foreach value: $value\t";
    function();
}
sub function {
    print "function value: $value\n";
}   
__END__
foreach value: one      function value: one
foreach value: two      function value: two
foreach value: three    function value: three