3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function bar() { return 'foo bar'; } } $callback = array('Foo', 'bar'); if (is_callable($callback)) { echo call_user_func($callback); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: Non-static method Foo::bar() should not be called statically in /in/rLeU2 on line 13 foo bar
Output for 7.3.32 - 7.3.33
foo bar
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Strict Standards: call_user_func() expects parameter 1 to be a valid callback, non-static method Foo::bar() should not be called statically in /in/rLeU2 on line 13 foo bar
Output for 5.1.2 - 5.1.6, 5.2.0 - 5.2.17
Strict Standards: Non-static method Foo::bar() cannot be called statically in /in/rLeU2 on line 12 Strict Standards: Non-static method Foo::bar() cannot be called statically in /in/rLeU2 on line 13 Strict Standards: Non-static method Foo::bar() cannot be called statically in /in/rLeU2 on line 13 foo bar
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.1
Strict Standards: Non-static method Foo::bar() cannot be called statically in /in/rLeU2 on line 13 foo bar
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/rLeU2 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/rLeU2 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/rLeU2 on line 5
Process exited with code 255.

preferences:
207.85 ms | 401 KiB | 314 Q