Поиск по базе данных на PHP

<?php 
include "connect.php"; 
 
?> 
 
  <?php 
 
$search_slovo = $_POST['q']; 
if(isset($search_slovo)){ 
if(empty($search_slovo)) {exit ("Вы не ввели данные");}} 
 
echo " Вы искали: $search_slovo"; 
$query= mysqli_query($link,"SELECT * FROM Кабинеты WHERE Номер_аудитории = ['$search_slovo']"); //строка 14 
 
$result= mysqli_num_rows($query); //строка 16 
if ($result == null) 
{ 
echo "Sorry, I couldn’t find any user that matches your query ($search_slovo)"; 
exit;  
} 
else if ($result == 1) 
{ 
echo "I’ve found <b>1</b> match!<br>"; 
} 
else { 
echo "I’ve found <b>$result</b> matches! <br>"; 
} 
 
while ($row= mysqli_fetch_array($query)) 
{ 
$nomer = $row["Номер_аудитории"]; 
$name = $row["Название_аудитории"]; 
} 
 
echo "The middle name of the user is: $nomer.<br>"; 
echo "The last name of the user is: $name. <br>"; 
?>