Melkij

while(in_array($url, $url_mas)) {
	$url .= $url.'-'.$a;
	$url_mas[] = $url;
	$a++;
}

соответственно namespace-ов нет.

$q = $var1 ?? $var2;
$q = isset($var1) ? $var1 : $var2;

$var1 = false;
$var2 = 2;

$q1 = $var1 ?? $var2;
$q2 = $var1 ?: $var2;

var_dump($q1, $q2);

SELECT p.phone,
count(1) filter(where i.status=7 ) as saled,
count(1) filter(where i.status=3 ) as no_saled
FROM items as i
INNER JOIN phones as p
ON i.user_id=p.users
WHERE p.phone IN("7924445544", "8985545444")
GROUP BY p.phone;

$xmlids[]= $rule;

$xmlids[]= (int) $rule;
// или, смотря что у вас там
$xmlids[]= (string) $rule;

SELECT TOP 100 Calls.ID, Calls.DateTime, Calls.Trunk, 
coalesce(Subscribers.FIO, Calls.Subscriber) as fieldname, -- если FIO NULL, тогда использовать значение поля Subscriber
...