is_bool

Logo Intervention/image Intervention/image
Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Finds out whether a variable is a boolean
<?php is_bool(mixed $value): bool
<?php         switch (strtolower($type)) {

            case 'bool':

            case 'boolean':

                $valid = \is_bool($value);

                $message = '%s accepts only boolean values as argument %d.';

                break;

            case 'int':
src/Intervention/Image/Commands/Argument.php