Booleans

This is the easiest type. A boolean expresses a truth value. It can be either TRUE or FALSE.

Syntax

To specify a boolean literal, use either the keyword TRUE or FALSE. Both are case-insensitive.

<?php $foo = True; // assign the value TRUE to $foo?>

<?php// == is an operator which test
// equality and returns a booleanif ($action == "show_version") {
echo "The version is 1.23";
}// this is not necessary...if ($show_separators == TRUE) {
echo "<hr>\n";
}// ...because you can simply typeif ($show_separators) {
echo "<hr>\n";
}?>