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<?php trait foo { protected $foo; protected function foo() { return $this->foo; } } trait bar { use foo; protected function bar() { return $this->foo().'bar'; } } class A { use foo; public function __construct($foo) { $this->foo = $foo; } } class B extends A { use bar; } $b = new B; $b->bar();
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ArgumentCountError: Too few arguments to function A::__construct(), 0 passed in /in/XM9CC on line 38 and exactly 1 expected in /in/XM9CC:27 Stack trace: #0 /in/XM9CC(38): A->__construct() #1 {main} thrown in /in/XM9CC on line 27
Process exited with code 255.
Output for 7.0.0 - 7.0.33
Warning: Missing argument 1 for A::__construct(), called in /in/XM9CC on line 38 and defined in /in/XM9CC on line 27 Notice: Undefined variable: foo in /in/XM9CC on line 29 Fatal error: Uncaught Error: Call to protected method B::bar() from context '' in /in/XM9CC:39 Stack trace: #0 {main} thrown in /in/XM9CC on line 39
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Strict Standards: A and bar define the same property ($foo) in the composition of B. This might be incompatible, to improve maintainability consider using accessor methods in traits instead. Class was composed in /in/XM9CC on line 36 Warning: Missing argument 1 for A::__construct(), called in /in/XM9CC on line 38 and defined in /in/XM9CC on line 27 Notice: Undefined variable: foo in /in/XM9CC on line 29 Fatal error: Call to protected method B::bar() from context '' in /in/XM9CC on line 39
Process exited with code 255.
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