3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C { public ?int $v = 123; } $x = new C; unset($x->v); $y = new C; $y->v = null; function propertyWasUnset($object, $propertyName) { try { $object->{$propertyName}; return true; } catch (\Error $e) { return false; } } var_dump(propertyWasUnset($x, 'v')); var_dump(propertyWasUnset($y, 'v'));
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
bool(false) bool(true)
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)
Output for 7.3.0 - 7.3.33
Parse error: syntax error, unexpected '?', expecting function (T_FUNCTION) or const (T_CONST) in /in/7NL0Y on line 4
Process exited with code 255.
preferences:
142.41 ms | 401 KiB | 156 Q