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<?php class Foo { private $a = 42; } $closure = function() { var_dump($this->a); }; $closure->call(new Foo); $closure->__invoke(new Foo);
Output for 7.0.0 - 7.0.20, 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
int(42) Fatal error: Uncaught Error: Using $this when not in object context in /in/UopfY:4 Stack trace: #0 /in/UopfY(8): {closure}(Object(Foo)) #1 /in/UopfY(8): Closure->__invoke(Object(Foo)) #2 {main} thrown in /in/UopfY on line 4
Process exited with code 255.
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 int(42) Fatal error: Uncaught Error: Using $this when not in object context in /in/UopfY:4 Stack trace: #0 /in/UopfY(8): {closure}(Object(Foo)) #1 /in/UopfY(8): Closure->__invoke(Object(Foo)) #2 {main} thrown in /in/UopfY on line 4
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Fatal error: Call to undefined method Closure::call() in /in/UopfY on line 6
Process exited with code 255.

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