$conn = mysql_connect('localhost','root','');
$db = mysql_select_db('test');
$query = mysql_query("SELECT * FROM tableA FULL OUTER JOIN tableB ON tableA.id=tableB.id");
echo '<pre>';
while($row = mysql_fetch_assoc($query)){
var_dump($row);
}
Warning: mysql_fetch_assoc() expects parameter 1 to be resource, boolean given in /var/www/html/test/index.php on line 10