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<?php class A { const X = 1 + self::Z; const Y = 1 - self::Z; const Z = self::Z; function f() { echo static::X; echo static::Y; echo static::Z; } } class B extends A { const Z = 1; } (new B)->f();
Output for 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Fatal error: Uncaught Error: Cannot declare self-referencing constant self::Z in /in/5aYB5:6 Stack trace: #0 /in/5aYB5(19): [constant expression]() #1 {main} thrown in /in/5aYB5 on line 6
Process exited with code 255.
Output for 8.2.0 - 8.2.29
Fatal error: Uncaught Error: Cannot declare self-referencing constant self::Z in /in/5aYB5:6 Stack trace: #0 {main} thrown in /in/5aYB5 on line 6
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33
Fatal error: Uncaught Error: Cannot declare self-referencing constant self::Z in /in/5aYB5:19 Stack trace: #0 {main} thrown in /in/5aYB5 on line 19
Process exited with code 255.
Output for 7.0.0 - 7.0.25, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Cannot declare self-referencing constant 'self::Z' in /in/5aYB5:19 Stack trace: #0 {main} thrown in /in/5aYB5 on line 19
Process exited with code 255.
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91.17 ms | 411 KiB | 5 Q