Nested If Statements in a Function - php

Question

Hi so I am trying to make a function which actually detects the time and depends on date(H); shows what courses and some other info happen right now.
$holidays = false;
//$hour = date('H');
$hour = "11"; //Changed it to test the code
function classes()
{
if ($holdays == false) //Are we on holidays? No
{
if($hour > "9" && $hour < "21") //University working hours? yes
{
if ($hour = "10") //Hour 10? classes below
{
echo "<tr>";
echo '<th class="course-title">...</th>';
echo '<th class="course-category">...</th>';
echo "<th>...</th>";
echo "<th>...</th>";
echo "<th>...</th>";
echo "</tr>";
//Another Class
echo "<tr>";
echo '<th class="course-title">...</th>';
echo '<th class="course-category">...</th>';
echo "<th>...</th>";
echo "<th>...</th>";
echo "<th>...</th>";
echo "</tr>";
//Another Class
echo "<tr>";
echo '<th class="course-title">...</th>';
echo '<th class="course-category">...</th>';
echo "<th>...</th>";
echo "<th>...</th>";
echo "<th>...</th>";
echo "</tr>";
}
else{ //Hour not 10?
echo "No classes right now.";
}
}
else{ //Not working hours?
echo "University closed at this time.</br>";
}
}
else{ //Vacation?
echo "University closed for vacation!";
}
}
So I setted $hour value to 11 so it will pass the first two ifs successfully and I expect that it will echo that there are no classes right now, but it returns that university is closed at this time. I may also mess up the } on the code.
PS: I know i am using to many echos I am not that experienced yet to go with strings

Answer 1

Please take note of your variable scope. To access $holidays inside the function, declare it with global scope.
$holidays = false;
$hour = "11"; //Changed it to test the code
function classes()
{
global $holidays, $hour; // <=== HERE
if ($holidays == false) //Are we on holidays? No
{
// your code here
{
}
In addition, you have other errors that others have pointed out in your code.
if ($hour = "10") should be if ($hour == "10") – Fabio
and
$holidays != $holdays your missing an i – cmorrissey