full-disclosure - Question: is this exploitable?

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From: jonathan at nuclearelephant.com (Jonathan A. Zdziarski)
Subject: Question: is this exploitable?

Eh? How does this prevent a sql injection exploit?  Placeholders (as was
previously suggested) are really the only way to accomplish that.

> $query=sprintf("insert into projects values(null,%s)",dbh->quote($project));
> $sth = $dbh->prepare($query);