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<?php class Foo { public $x; } $a = new Foo(); $b = new Foo(); $a->x = $b; $b->x = $a; print_r($a == $b); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Nesting level too deep - recursive dependency? in /in/TnuYb on line 11
Process exited with code 255.

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