Use placeholders. They take the literals OUT of your SQL statements, and take them as direct arguments instead. This has the side benefit of letting you pre-compile your SQL statements.
Any level of chasing quotes and doublequotes and escape sequences will just backfire eventually. Do it right from the start.
Compare:
$dbh->do("INSERT INTO body (Body) Values('$body')");
$dbh->do("INSERT INTO body (Body) Values (?)",
$body);
(Actual syntax is not tested. (Thanks, tinita.))
--
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