3v4l.org

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<?php $question="<script>alert('hacked')</script>"; echo "<br>original question=",$question; $question = make_secure( $question ); echo "<br>converted question=",$question; echo "<br>converted question calling htmlspecialchars=",htmlspecialchars($question); function make_secure($data) { $data = htmlspecialchars($data); return $data; }

preferences:
40.56 ms | 402 KiB | 5 Q