3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface ia { const c = 'Sea'; } class Foo implements ia { const c = "Lake"; // Attempting to override ia's constant c in // this class triggers a fatal error. } class FooBar extends Foo implements ia { const c = 'Ocean'; // No error, class constant // overriding ia's definition. public function show(){ // ia's definition is still accessible. return ia::c; } public function showp(){ return parent::c; } } $i = new FooBar; echo FooBar::c; echo $i->show(); echo $i->showp();
Output for 5.2.12 - 5.2.17, 5.3.2 - 7.1.0
Fatal error: Cannot inherit previously-inherited or override constant c from interface ia in /in/4rAaE on line 8
Process exited with code 255.
Output for 5.0.0 - 5.2.11, 5.3.0 - 5.3.1
Fatal error: Cannot inherit previously-inherited constant c from interface ia in /in/4rAaE on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/4rAaE on line 4
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/4rAaE on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/4rAaE on line 4
Process exited with code 255.