3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Bar { function do_bar() { echo __METHOD__, "\n"; } } class Foo { function &do_foo() { return new Bar(); } } $foo = new Foo(); $foo->do_foo()->do_bar();
Output for 5.1.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Only variable references should be returned by reference in /in/vkao1 on line 8 Bar::do_bar
Output for hhvm-3.10.0 - 3.12.0
Bar::do_bar
Output for 5.0.0 - 5.0.5
Strict Standards: Only variable references should be returned by reference in /in/vkao1 on line 8 Bar::do_bar
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/vkao1 on line 13
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_OBJECT_OPERATOR in /in/vkao1 on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/vkao1 on line 13
Process exited with code 255.