- Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- Warning: Undefined global variable $foo in /in/buvQi on line 3
- Output for 8.0.0 - 8.0.30
- Warning: Undefined array key "foo" in /in/buvQi on line 3
- Output for 5.3.4 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
- Notice: Undefined index: foo in /in/buvQi on line 3
- Output for 7.3.32 - 7.3.33, 7.4.26