Voids
The boolean data type takes two values which are reserved keywords: true and false. Boolean results are provided with comparisons.
Attention: The keywords are case-sensitive. True and TRUE are a string values, as well as 'true' and "false".
echo(true, " / ", type(true)); // Boolean true
echo(True, " / ", type(True)); // This is a string value (T is upper case.)
echo(5 > 6, " / ", type(5 > 6)); // Boolean false
echo(true & false); // Logical AND
echo(true | false); // Logical ORtrue / boolean
True / string
false / boolean
false
true