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<?php interface Printable { public function __toString(); } class MyPrintableClass { public $myNumericProperty; public function __construct() { $this->myNumericProperty = 10; } public function __toString() { return 'My numeric property is ' . $this->myNumericProperty; } } function printSomething(string $printable) { echo $printable; } $printable = new MyPrintableClass(); printSomething((string) $printable); printSomething("a real string"); printSomething((string)1234); printSomething((string)1.2); printSomething((string)true);
Output for git.master, git.master_jit, rfc.property-hooks
My numeric property is 10a real string12341.21

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