3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface Foo {} class Bar implements Foo {} $bar = new Bar(); var_dump(is_a($bar, 'Foo')); var_dump(is_a($bar, 'Bar'));
Output for 5.3.0 - 7.1.0
bool(true) bool(true)
Output for 5.0.0 - 5.2.17
Strict Standards: is_a(): Deprecated. Please use the instanceof operator in /in/D5vVV on line 7 bool(true) Strict Standards: is_a(): Deprecated. Please use the instanceof operator in /in/D5vVV on line 9 bool(true)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/D5vVV on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/D5vVV on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/D5vVV on line 2
Process exited with code 255.