<?php class A { public string $a; public string $b; public function __construct( string $a, string $b, ){ $this->a = $a; $this->b = $b; } } $a = new A('b', 'a'); $b = new A('a', 'b'); var_dump($a <=> $b); // 1 var_dump($b <=> $a); // -1 class B { public string $b; // The property declarations are inverted public string $a; public function __construct( string $a, string $b, ){ $this->a = $a; $this->b = $b; } } $a = new B('b', 'a'); $b = new B('a', 'b'); var_dump($a <=> $b); // -1 var_dump($b <=> $a); // 1
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