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<?php declare(strict_types=1); final class Foo implements \Stringable { private function __construct(public readonly string $value) { } public static function fromString(string $string): self { return new self($string); } /** * {@inheritdoc} */ public function __toString(): string { return $this->value; } } $options = [ Foo::fromString('c'), Foo::fromString('b'), Foo::fromString('a'), Foo::fromString('ccc'), Foo::fromString('bcc'), ]; function foo(string $a, string $b): int { return 1; } uasort($options, 'foo'); var_export($options);
Output for git.master_jit
array ( 4 => \Foo::__set_state(array( 'value' => 'bcc', )), 3 => \Foo::__set_state(array( 'value' => 'ccc', )), 1 => \Foo::__set_state(array( 'value' => 'b', )), 2 => \Foo::__set_state(array( 'value' => 'a', )), 0 => \Foo::__set_state(array( 'value' => 'c', )), )
Output for git.master

Process exited with code 139.

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