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Help using Num Rows


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$sql = "SELECT * from updates ORDER BY id DESC LIMIT 3";
$stmt = $link->prepare($sql);
$result = $stmt->get_result(); 

if ($result->num_rows = '0') {

	echo "There haven't been any updates yet.";
} else {

	echo "There are news posts";

Gives me the error "Cannot write property in /home/evoarena/public_html/Dev/news.php:14 ", line 14 is the if statement. How can I fix it?

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