- 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: compact(): Undefined variable $a in /in/YD8Qc on line 7 array(1) { ["b"]=> int(2) }
- Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
- Notice: compact(): Undefined variable: a in /in/YD8Qc on line 7 array(1) { ["b"]=> int(2) }
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 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 - 7.2.33, 7.3.32 - 7.3.33
- array(1) { ["b"]=> int(2) }