Fundamentals: Identifiers #

Identifiers are used to label variables, constants, functions, classes, interfaces, and other constructs in Ara code.

An identifier must start with a character from the unicode character set, or an underscore (_), followed by zero or more characters from the unicode character set, or digits (0-9).

variables, and class properties names must start with a $ sign.

Examples #

namespace MyNamespace;

use MyOtherNamespace\MyClass;

type MyType = int;

const u8 MY_CONST = 1;

function my_function(): void {
    $my_variable = 1;
}

class MyClass {
    public int $myProperty = 0;
}

interface MyInterface {
    public function myMethod(): void;
}

enum MyEnum: int {
    case MY_VALUE = 1;
}