- Output for 8.5.0 - 8.5.3
- Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/pRpfO on line 4 string(3) "a_b"
- Output for 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
- Deprecated: Increment on non-alphanumeric string is deprecated in /in/pRpfO on line 4 string(3) "a_b"
- Output for 5.6.0 - 5.6.29, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30
- string(3) "a_b"