3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test(int $number):int|null { return null; } echo test(123);
Output for 8.1.23 - 8.1.27, 8.2.10 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
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
Output for 7.0.0
Parse error: syntax error, unexpected '|', expecting '{' in /in/VlONO on line 2
Process exited with code 255.
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.16
Parse error: syntax error, unexpected ':', expecting '{' in /in/VlONO on line 2
Process exited with code 255.
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