<?php echo htmlspecialchars('<script>alert("xss")</script>') . "\n"; echo htmlspecialchars('<script>alert("xss")</script>', ENT_QUOTES | ENT_HTML401) . "\n"; echo htmlspecialchars(htmlspecialchars('<script>alert("xss")</script>')) . "\n"; echo htmlspecialchars(htmlspecialchars('<script>alert("xss")</script>', ENT_QUOTES | ENT_HTML401)) . "\n"; echo htmlspecialchars(htmlspecialchars(htmlspecialchars('<script>alert("xss")</script>'))) . "\n"; echo htmlspecialchars(htmlspecialchars(htmlspecialchars('<script>alert("xss")</script>', ENT_QUOTES | ENT_HTML401))) . "\n";
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