3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C implements ArrayAccess { function offsetGet() { echo 'offsetGet'; } function offsetExists() { echo 'offsetGet'; } function offsetSet() { echo 'offsetGet'; } // function offsetGet() { echo 'offsetGet'; } } $x = new C(); var_dump(empty($x));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of C::offsetExists() must be compatible with ArrayAccess::offsetExists(mixed $offset): bool in /in/OfBWg on line 5
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Declaration of C::offsetExists() must be compatible with ArrayAccess::offsetExists(mixed $offset) in /in/OfBWg on line 5
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Fatal error: Declaration of C::offsetExists() must be compatible with ArrayAccess::offsetExists($offset) in /in/OfBWg on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33
Fatal error: Declaration of C::offsetExists() must be compatible with ArrayAccess::offsetExists($offset) in /in/OfBWg on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Fatal error: Declaration of C::offsetExists() must be compatible with that of ArrayAccess::offsetExists() in /in/OfBWg on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/OfBWg on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/OfBWg on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/OfBWg on line 3
Process exited with code 255.

preferences:
208.77 ms | 401 KiB | 314 Q