Online PHP editor | output for PC562

Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Warning: Undefined array key 3 in /in/PC562 on line 7 Deprecated: explode(): Passing null to parameter #2 ($string) of type string is deprecated in /in/PC562 on line 7 array(1) { [0]=> string(0) "" }
Output for 8.0.0 - 8.0.30: Warning: Undefined array key 3 in /in/PC562 on line 7 array(1) { [0]=> string(0) "" }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Notice: Undefined offset: 3 in /in/PC562 on line 7 array(1) { [0]=> string(0) "" }
Output for 7.3.32 - 7.3.33: array(1) { [0]=> string(0) "" }
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: Notice: Undefined offset: 3 in /in/PC562 on line 7 array(1) { [0]=> string(0) "" }