$logtype=@singlefilter[0];

##</code><code>##

$logtype=$singlefilter[0];

##</code><code>##

$logtype = ${$singlefilter}[0];
# is the same as
$logtype = $singlefilter[0]->[0];
# is the same as
$logtype=$singlefilter[0][0];

##</code><code>##

($logtype, $Regex_Event, $Friendly_Output) = @{$singlefilter[0]}[0,1,2];

##</code><code>##

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