- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- Warning: array_flip(): Can only flip string and integer values, entry skipped in /in/FGbcG on line 4 PREG_NO_ERROR
- Output for 7.3.24 - 7.3.33, 7.4.12 - 7.4.33
- Warning: array_flip(): Can only flip STRING and INTEGER values! in /in/FGbcG on line 4 PREG_NO_ERROR
- Output for 7.1.6
- PREG_NO_ERROR