Re^2: how do i get the 2nd line when the 1st is matched

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$text = "whatever_you_already_havefoobar\n"; # $1 eq "foobar"
$text = "whatever_you_already_have foo\nbar"; # $1 eq "foo"
$text = "whatever_you_already_have\nfoobar"; # $1 eq "foobar"
$text = "whatever_you_already_have\nfoo bar"; # $1 eq "foo"

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/whatever_you_already_have.*\n(.*)/

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/whatever_you_already_have[^\n]*\n([^\n]*)/s

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