Online PHP editor | output for 5SsZd

Output for 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: =?ISO-8859-1?B?Pz8/Pz8/Pz8gPz8/Pz8gPz8/Pz8/Pz8/Pz8gPyA/Pz8/Pz86ICJ7UEFH?= =?ISO-8859-1?B?RV9USVRMRX0i?=
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 =?ISO-8859-1?B?Pz8/Pz8/Pz8gPz8/Pz8gPz8/Pz8/Pz8/Pz8gPyA/Pz8/Pz86ICJ7UEFH?= =?ISO-8859-1?B?RV9USVRMRX0i?=
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, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35: =?ISO-8859-1?B?0JTQvtCx0LDQstC70LXQvSDQvdC+0LLRi9C5INC60L7QvNC80LXQvdGC?= =?ISO-8859-1?B?0LDRgNC40Lkg0Log0LfQsNC/0LjRgdC4OiAie1BBR0VfVElUTEV9Ig==?=