Spaceship Always False¶

By Jerome Tamarelle

<?php

class A {}
class B {}

$a = new A;
$b = new B;

var_dump($a <=> $b); // 1: A > B
var_dump($b <=> $a); // 1: B > A
var_dump($b == $a);  // false

Compare A to B, and A is bigger than B.

Compare B to A, and B is bigger than A.

And, in the end, they are still different.

See Also¶

Comparing two objects [Try me]

PHP Features¶

Last updated: 14 July 2026