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<?php class A { const MY_CONST = false; public function my_const_self() { return self::MY_CONST; } public function my_const_static() { return static::MY_CONST; } } class B extends A { const MY_CONST = true; } $b = new B(); echo $b->my_const_self ? 'yes' : 'no'; // output: no echo $b->my_const_static ? 'yes' : 'no'; // output: yes ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined property: B::$my_const_self in /in/AoF4F on line 17 no Warning: Undefined property: B::$my_const_static in /in/AoF4F on line 18 no
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined property: B::$my_const_self in /in/AoF4F on line 17 no Notice: Undefined property: B::$my_const_static in /in/AoF4F on line 18 no
Output for 7.3.32 - 7.3.33
nono
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_STATIC in /in/AoF4F on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STATIC in /in/AoF4F on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/AoF4F 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_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/AoF4F on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/AoF4F on line 3
Process exited with code 255.
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