- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.26, 8.2.0 - 8.2.13, 8.3.0
- Warning: serialize(): "" returned as member variable from __sleep() but does not exist in /in/9KgXc on line 17 object(A)#2 (1) { ["x"]=> int(1) }
- Output for 5.6.38, 7.0.33, 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: serialize(): "" returned as member variable from __sleep() but does not exist in /in/9KgXc on line 17 object(A)#2 (2) { ["x"]=> int(1) [""]=> NULL }
- Output for 7.3.32 - 7.3.33
- object(A)#2 (2) { ["x"]=> int(1) [""]=> NULL }