php broke

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML. 1.0 Strict//EN" "http://w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<meta http-equiv="content-type"
<content="text/html; charset=iso-8859-1" />
<link rel="stylesheet" type="text/css" href="bootstrap-3.3.6-dist/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="bootstrap-social-gh-pages/assets/css/font-awesome.css">
<link rel="stylesheet" type="text/css" href="MyCSS.css">
</head>
<body>
<div class="container-fluid">
	<div class="row-fluid">
		<div class="col-sm-12">
			<div class="jumbotron">
			  <h1 align="center">Products</h1>
			  <p align="center">We the best products around Christiansburg, Va!</p>
			  <p><a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a></p>
			</div>
		</div>

	</div>
	</div>

<div class="container-fluid">
    <div class="row-fluid">
        <div class="col-sm-12">
        <ul class="nav nav-tabs">
  <li class="active"><a href="index.php">Home</a></li>
  <li><a href="productsPage.php">Products</a></li>
  <li><a href="#">Cart</a></li>
</ul>

             </nav>
            </div>
			</div>
		</div>
<!--body content-->

			<div class="col-sm-12">
			<!--create the table in php-->
				<?php
				include('connectDB.php');
				$TableName = "products";
				$Products = array();
				$sql =" SELECT ProductName, Cost, ProductDescription FROM $TableName";
				$result = $conn->query($sql);
				if ($result->num_rows > 0)
					{
						while($Row = $result->fetch_assoc())
							$Products[] = $Row;

					}


			echo "<table border='1' width='100%'>\n";
			echo "<tr>\n";
			echo "<th style='background-color:grey'>Product Image</th>\n";
			echo "<th style='background-color:grey'>Product Name</th>\n";
			echo "<th style='background-color:grey'>ProductID</th>\n";
			echo "<th style='background-color:grey'>Product Description</th>\n";
			echo "<th style='background-color:grey'>Quantity On_Hand</th>\n";
			echo "<tr>\n";

		foreach ($Products as $Products) {
		if(!in_array($Products['products'])) {
		echo "<tr>\n";
		echo "<td>" .htmlentities($Opportunity['ProductName']). "</td>\n";
		echo "<td>" .htmlentities($Opportunity['ProductID']). "</td>\n";
		echo "<td>" .htmlentities($Opportunity['Cost']). "</td>\n";
		echo "<td>" .htmlentities($Opportunity['ProductDescription']). "</td>\n";
		echo "<td>" .htmlentities($Opportunity['QuantityOn_Hand']). "</td>\n";

		}
			echo "</table>";
		}

		$conn->close();


	?>
			</div>
<!--end body content-->
		</div>
	</div>
<script src="jquery-1.10.2.min.js"></script>
<script src="bootstrap-3.3.6-dist/js/bootstrap.min.js"></script>
</body>
</html>