Online PHP editor | output for uuo4f

Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 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: bool(false) bool(true) string(6) ":) PHP"
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 bool(false) bool(true) string(6) ":) PHP"
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35: bool(false) bool(false) Warning: mb_ereg_replace(): mbregex compile err: premature end of char-class in /in/uuo4f on line 6 bool(false)
Output for 4.3.4 - 4.3.11, 4.4.0 - 4.4.9: Warning: mb_ereg_match(): mbregex compile err: premature end of regular expression in /in/uuo4f on line 2 bool(false) Warning: mb_ereg_match(): mbregex compile err: premature end of regular expression in /in/uuo4f on line 3 bool(false) Warning: mb_ereg_replace(): mbregex compile err: premature end of regular expression in /in/uuo4f on line 6 bool(false)
Output for 4.3.2 - 4.3.3: Fatal error: Call to undefined function: mb_ereg_match() in /in/uuo4f on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: mb_ereg_match() in /in/uuo4f on line 2