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<?php abstract class A{ protected $foo = 'I m foo'; } class B extends A{ static function sayFoo(){ echo parent::$foo; } } B::sayFoo();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Access to undeclared static property A::$foo in /in/bu3ob:9 Stack trace: #0 /in/bu3ob(13): B::sayFoo() #1 {main} thrown in /in/bu3ob on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Access to undeclared static property: A::$foo in /in/bu3ob:9 Stack trace: #0 /in/bu3ob(13): B::sayFoo() #1 {main} thrown in /in/bu3ob on line 9
Process exited with code 255.
Output for 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Access to undeclared static property: A::$foo in /in/bu3ob on line 9
Process exited with code 255.
Output for 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
Fatal error: Access to undeclared static property: A::$foo in /in/bu3ob on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Cannot access protected property A::$foo in /in/bu3ob on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/bu3ob on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_CLASS in /in/bu3ob on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/bu3ob on line 3
Process exited with code 255.

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