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<?php class Foo { public function bar(): callable { return function() { $this->get_emails(); }; } public function get_emails(): void { echo __METHOD__; } } $foo = new Foo(); $func = $foo->bar(); $func();
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 - 8.3.4, 8.3.6
Foo::get_emails
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Foo::get_emails
Output for 7.0.0 - 7.0.33
Foo::get_emails Fatal error: Uncaught TypeError: Return value of Foo::get_emails() must be an instance of void, none returned in /in/0YMOq:9 Stack trace: #0 /in/0YMOq(4): Foo->get_emails() #1 /in/0YMOq(14): Foo->{closure}() #2 {main} thrown in /in/0YMOq on line 9
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/0YMOq on line 3
Process exited with code 255.

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