3v4l.org

run code in 300+ PHP versions simultaneously
<?php class User { public function changeName($name) { } } class PrivateUser extends User { public function changeName($name, $blabla) { } } new PrivateUser();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.16, 8.4.1 - 8.4.3
Fatal error: Declaration of PrivateUser::changeName($name, $blabla) must be compatible with User::changeName($name) in /in/dd4fl on line 12
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of PrivateUser::changeName($name, $blabla) should be compatible with User::changeName($name) in /in/dd4fl on line 12
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Declaration of PrivateUser::changeName($name, $blabla) should be compatible with User::changeName($name) in /in/dd4fl on line 16
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Strict Standards: Declaration of PrivateUser::changeName() should be compatible with User::changeName($name) in /in/dd4fl on line 16
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
Strict Standards: Declaration of PrivateUser::changeName() should be compatible with that of User::changeName() in /in/dd4fl on line 16
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/dd4fl on line 5
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 T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/dd4fl on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/dd4fl on line 5
Process exited with code 255.

preferences:
144.37 ms | 415 KiB | 5 Q