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<?php class A {} $a = (object) null; var_dump($a + $a + $a);
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 TypeError: Unsupported operand types: stdClass + stdClass in /in/kPnQv:7 Stack trace: #0 {main} thrown in /in/kPnQv on line 7
Process exited with code 255.
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Object of class stdClass could not be converted to number in /in/kPnQv on line 7 Notice: Object of class stdClass could not be converted to number in /in/kPnQv on line 7 int(3)
Output for 7.3.32 - 7.3.33
int(3)
Output for 7.0.17 - 7.0.33, 7.1.3 - 7.1.25, 7.2.0 - 7.2.33
Notice: Object of class stdClass could not be converted to int in /in/kPnQv on line 7 Notice: Object of class stdClass could not be converted to int in /in/kPnQv on line 7 int(3)
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.16, 7.1.0 - 7.1.2
Notice: Object of class stdClass could not be converted to int in /in/kPnQv on line 7 Notice: Object of class stdClass could not be converted to int in /in/kPnQv on line 7 Notice: Object of class stdClass could not be converted to int in /in/kPnQv on line 7 int(3)

preferences:
226.01 ms | 403 KiB | 340 Q