Forward Reference : Variable Scope « Language Basics « Perl

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Perl » Language Basics » Variable Scope

Forward Reference


    



#!/usr/bin/perl

sub bye;  # Forward reference



$name="Tom";

print "Hello $name.\n";



bye;      # Call subroutine without the ampersand



sub bye{

    print "Bye $name\n";

}

Related examples in the same category

1.	Auto local variable
2.	Local element
3.	Local variables.
4.	Uses the same name inside and outside a foreach statement.
5.	Creates a global variable $myvar and prints out the global instance of the variable and the package-specific variable:
6.	Scope of Variables: Variables used in subroutines are global by default

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