I don't understand the task 2.2 where I need to work with booleans.
$a == $isIndentical;
<?php $a = 5; //Place your code below this comment $isBoolean = true; $isIdentical = "5"; $a == $isIdentical; ?>
The question is asking you to check if $a is identical to the string "5" and store the result of this test in $isIdentical
To check if two things are identical (rather than just the same value), we use the === operator.
So $a === "5" would check if $a is identical (same type AND same value) to "5", as it is not the same type, it would be false. Now you need to store this in the $isIdentical variable:
$isIdentical = ($a === "5");
You probably don't need the brackets around the test but I like to add them to make it clear what is happening.