Type ‣ Null ᴾᴴᴾ - chung-leong/zigar GitHub Wiki

JavaScript | PHP

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The literal null in Zig is represented as null in PHP. You will only encounter it if you explicitly export null.

pub const Null = null;

<?php

$m = zigar_use(__DIR__ . '/null-example-1.zig');

debug_zval_dump($m->null_value);

NULL

As @TypeOf(null) is a comptime type, you can only put it into a struct if you make it a comptime field:

pub const NumberAndNothing = struct {
    number: i32,
    comptime nothing: @TypeOf(null) = null,
};

<?php

$m = zigar_use(__DIR__ . '/null-example-2.zig');

$struct = new $m->NumberAndNothing(number: 1234);
print_r($struct);

NumberAndNothing Object
(
    [number] => 1234
    [nothing] => 
)

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Types