Online PHP editor | output for vXZZq

Output for 5.5.24 - 5.5.28, 5.5.31 - 5.5.33, 5.5.35, 5.6.8 - 5.6.12, 5.6.16 - 5.6.19, 5.6.21, 7.0.0 - 7.0.4, 7.0.6 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: string(16) "xn--bcher-kva.de" array(3) { ["result"]=> string(16) "xn--bcher-kva.de" ["isTransitionalDifferent"]=> bool(false) ["errors"]=> int(0) } string(10) "bücher.de" array(3) { ["result"]=> string(10) "bücher.de" ["isTransitionalDifferent"]=> bool(false) ["errors"]=> int(0) }
Output for 7.0.5, 7.3.32 - 7.3.33, 7.4.33, 8.0.13: Fatal error: Uncaught Error: Call to undefined function idn_to_ascii() in /in/vXZZq:3 Stack trace: #0 {main} thrown in /in/vXZZq on line 3
Process exited with code 255.
Output for 5.5.29 - 5.5.30, 5.5.34, 5.6.13 - 5.6.15, 5.6.20: Fatal error: Call to undefined function idn_to_ascii() in /in/vXZZq on line 3
Process exited with code 255.