Call key of a database for a user to choose in a Php form [closed]

0
<?php
$link = mysqli_connect("localhost", "root", "");
$query = mysqli_query($link, "certificados");
?>
<form name="produto" method="post" action="">
 <label for="">Selecione um Nome de Autor</label>
 <select>
 <option>Selecione...</option>

 <?php while($prod = mysqli_fetch_array($query)) { ?>
 <option value="<?php echo $prod["aut_nome"] ?>"</option>
 <?php } ?>

Because this code does not work, the database data does not appear to choose thank you !!!

    
asked by anonymous 05.02.2017 / 18:30