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<?php class Foo { public static function test() { echo __METHOD__; } } $bar = ['test']; Foo::{$bar[0]}(); (Foo::$bar)[0]();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Foo::test Fatal error: Uncaught Error: Access to undeclared static property Foo::$bar in /in/B7qch:14 Stack trace: #0 {main} thrown in /in/B7qch on line 14
Process exited with code 255.
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
Foo::test Fatal error: Uncaught Error: Access to undeclared static property: Foo::$bar in /in/B7qch:14 Stack trace: #0 {main} thrown in /in/B7qch on line 14
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.21
Parse error: syntax error, unexpected '[' in /in/B7qch on line 14
Process exited with code 255.

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