Searching MySQL with Now() always returns true - php

Question

I have a MySQL table like this:
| rsid | rsuser | rsintime | rsouttime | rsroom |
| ---- | ------- | ---------------- | ---------------- | ------ |
| 1 | Nick S | 10/14/2014 11:17 | 10/14/2014 12:18 | 1 |
| 2 | Mike G | 10/15/2014 10:18 | 10/15/2014 11:19 | 1 |
| 3 | Chuck M | 10/14/2014 21:56 | 10/14/2014 22:56 | 1 |
| 4 | Jake B | 10/26/2014 22:14 | 10/26/2014 23:15 | 1 |
My PHP code is:
<?php
$con=mysqli_connect("0.0.0.0","roomapp","hi","roomapp");
$testschedulesql = "SELECT (NOW() > rsintime AND NOW() < rsouttime) as res_rm from raRmSchedule";
$testscheduleqry = mysqli_query($con, $testschedulesql);
$testschedule = mysqli_num_rows($testscheduleqry);
$testscheduletext = mysqli_fetch_array($testscheduleqry);
echo $testschedule;
if($testschedule > 0){
echo 'Busy';
}
else{
echo 'Not';
}
?>
However, $testschedule always returns the total rows. I want it to return only rows where the current time is within an in/out time. What am I doing wrong?

Answer 1

You need a where clause:
SELECT rm.*
from raRmSchedule
WHERE (NOW() > rsintime AND NOW() < rsouttime)
To count the number of rows:
SELECT COUNT(*)
from raRmSchedule
WHERE (NOW() > rsintime AND NOW() < rsouttime)
This returns one row with one column. It will be 0 if there are no matches.
Your version returns one row for each row in the table. There will be one column with a value of 0 or 1, depending on whether the condition matches.

Answer 2

Of course it will give you all rows, as what you are selecting is the boolean value of an expression.
I think what you want is giving the query a WHERE clause to filter the time you're needing.
Something like
Select * from raRMSchedule where (now() > rsintime and now() < rsouttime).