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<?php $class = new class() { private $value; public function __construct($value) { $this->value = $value; } public function value() { return $this->value; } }; $o = new $class(5); var_dump($o->value());
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ArgumentCountError: Too few arguments to function class@anonymous::__construct(), 0 passed in /in/tKs4k on line 3 and exactly 1 expected in /in/tKs4k:6 Stack trace: #0 /in/tKs4k(3): class@anonymous->__construct() #1 {main} thrown in /in/tKs4k on line 6
Process exited with code 255.

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