Since arrays and hashes can only contain scalars in Perl, why do you have to use the $ to tell the interpreter that the value is a scalar when accessing array or hash elements? In other words, assuming you have an array @myarray and a hash %myhash, why do you need to do: $x = $myarray[1]; $y = $myhash{'foo'}; instead of just doing : ...
Is it possible to name variables in a Java-like manner in PHP, such as by removing the need for a $ sign each time? If so, how can I enable the setting which does this? ...
It's been a while since I last did Ruby programming -- looking at somebody else's code, I see the @ sigil in a function (not a method -- external to any class definition), which I understood to be scoped to instance members. Is the module the implied self in functions? ...
What does the double $ statement stands for in PHP? ...
What is the difference between $this, @that, and %those in Perl? ...