I havent read the rest of the thread, I only comment because of your mistake in the cb ;-), but the test you describe: 
if ( defined($foo) and $foo eq '?' ) { 
    print "\$foo OK!\n"; 
}

[download]
Would be better (Lazier) written 
print "\$foo OK!\n" 
   if $foo and $foo eq '?';

[download]
in my opinion anyway...

Note that since $foo must be a '?', then it cant be _any_ false value, defined being only one of three. Thus you can dispose of the defined test and replace it with simple true or false.

Yves / DeMerphq
---
Software Engineering is Programming when you can't. -- E. W. Dijkstra (RIP)

In reply to Re: Re: defined() might be a good idea by demerphq
in thread Check on if statement by Anonymous Monk

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