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<?php define('constant', 'value'); define('MyClass::constant', 'value'); $constants = get_defined_constants(true); if (isset($constants['user'])) { var_dump($constants['user']); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
Fatal error: Uncaught ValueError: define(): Argument #1 ($constant_name) cannot be a class constant in /in/erZcK:4 Stack trace: #0 /in/erZcK(4): define('MyClass::consta...', 'value') #1 {main} thrown in /in/erZcK on line 4
Process exited with code 255.
Output for 5.2.13 - 5.2.17, 5.3.2 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Class constants cannot be defined or redefined in /in/erZcK on line 4 array(1) { ["constant"]=> string(5) "value" }
Output for 5.2.10 - 5.2.12, 5.3.0 - 5.3.1
Warning: Class 'myclass' does not exist in /in/erZcK on line 4 array(1) { ["constant"]=> string(5) "value" }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.9
array(2) { ["constant"]=> string(5) "value" ["MyClass::constant"]=> string(5) "value" }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
Warning: Wrong parameter count for get_defined_constants() in /in/erZcK on line 6

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