How to get a number value from database? - php

Question

I Am having trouble with this, i have table from mysql named person with fields id, name, and person_room. I also have this table called room with fields of roomid, name and capacity. i want to call a data from field capacity of table room. but it shows Resource id #7
here is my code:
$check_room_capacity = "SELECT capacity from room WHERE roomid = '".$oroom."'";
$check_user_capacity = mysql_query($check_room_capacity);
$rows = mysql_fetch_array($check_user_capacity);
$check_room = "SELECT id from person WHERE person_room = '".$oroom."'";
$check_user_room = mysql_query($check_room);
if(mysql_num_rows($check_user_room) => $check_user_capacity){
echo "room is loaded please try another room";
}
//then code here to insert it if the number of person
//is less than the room capacity
I tried to echo this thing $check_user_capacity to know its value but it shows resource id#7. Do you guys have any idea?
The other thing is, why my php don't accept this operation '=>' and '<=' it always underlined in color red?

Answer 1

mysql_query() statement returns a resource pointer to the result set, not the data itself. You'll need to use mysql_fetch_array() in order to retrieve the actual data in the table.
$old_ip = mysql_query("SELECT current_ip FROM members WHERE id='$id'");
$row = mysql_fetch_array($old_ip);
$result_old_ip = $row['current_ip'];

Answer 2

Try this one:
$check_room_capacity = "SELECT capacity from room WHERE roomid = '".$oroom."'";
$check_user_capacity = mysql_query($check_room_capacity);
$rows = mysql_fetch_array($check_user_capacity);
$check_room = "SELECT id from person WHERE person_room = '".$oroom."'";
$check_user_room = mysql_query($check_room);
if(mysql_num_rows($check_user_room) >= $rows['capacity']){
echo "room is loaded please try another room";
}