$_ is used if a variable is used in the function. while (shift @array) tests whether shift @array is true. It doesn't go through the values of @array.
foreach (@array){} says go through each value of @array. $_ stands for the current element for each step in the foreach.

$_ is used if the function in question searches through the the values of an @array or keys %hash.

If it doens't search through the values, then it doesn't use $_.

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Wiz, The VooDoo Doll
Head Master of 12:30 Productions
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In reply to Re: When does $_ get used? by wiz
in thread When does $_ get used? by elbie

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