- Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
- array(4) { [0]=> array(2) { [0]=> int(5) [1]=> int(6) } [1]=> array(2) { [0]=> int(2) [1]=> int(3) } [2]=> array(2) { [0]=> int(1) [1]=> int(8) } [3]=> array(2) { [0]=> int(3) [1]=> int(4) } }