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<?php trait T { public function __construct() { parent::__construct(42); } } class A { public function __construct($v) { var_dump($v); } } class B extends A { use T; } new B();
Output for 5.6.5 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
int(42)
Output for 5.6.0 - 5.6.4
Fatal error: B has colliding constructor definitions coming from traits in /in/2gshW on line 14
Process exited with code 255.

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184.36 ms | 401 KiB | 292 Q