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<?php class Foo { public function bar(): callable { $chosen = "get_emails"; return function() use ($chosen) { $this->$chosen(); }; } public function get_emails(): void { echo __METHOD__; } } $foo = new Foo(); $func = $foo->bar(); $func();
Output for 7.1.0 - 7.1.22, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Foo::get_emails
Output for 5.6.38
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/lX8XB on line 3
Process exited with code 255.

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