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<?php $obj = new StdClass; $obj->fn = function($arg) { return "Hello $arg"; }; echo ($obj->fn)('World'); class Bla { public $fn; public $fn2; public function __construct($f=null){ $this->fn2 = $f; } } $bla = new Bla; $bla->fn = function($arg="Bu"){return "Hello lo $arg"; }; // can't do in class! echo ($bla->fn)('Wa'); $blah = new Bla(function(){ return "F!";}); echo ($bla->fn2)();
Output for git.master, git.master_jit, rfc.property-hooks
Hello WorldHello lo Wa Fatal error: Uncaught Error: Value of type null is not callable in /in/kBDHJ:20 Stack trace: #0 {main} thrown in /in/kBDHJ on line 20
Process exited with code 255.

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