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Variables can be made local to their own scope by declaring them using a keyword called my. When the interpreter leaves the scope, the variable will be restored to its original value.
Here's an example:
$a = 5;
$b = 1000;
{
my ($b);
for($b=0;$b<10;$b++)
{
print $a, "*", $b, " = ", ($a*$b), "\n";
}
}
print "Now, \$b is ", $b, "\n";
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If you wish to declare more than one variable as local you should use a set of parenthesis surrounding the variable list. (For example: my (@array, $scalar1, %hash, $scalar2);) If not, you can omit them.
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