3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { function foo() { return "Foo.foo()"; } function __toString() { return null; } } $foo = new Foo(); $bar = "Bar"; $bar .= $foo; echo $bar;
Output for 7.1.0
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Foo has a deprecated constructor in /in/HtLiF on line 2 Recoverable fatal error: Method Foo::__toString() must return a string value in /in/HtLiF on line 15
Process exited with code 255.
Output for 7.0.0 - 7.0.14
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Foo has a deprecated constructor in /in/HtLiF on line 2 Catchable fatal error: Method Foo::__toString() must return a string value in /in/HtLiF on line 15
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: Uncaught Error: Method Foo::__toString() must return a string value in /in/HtLiF:15 Stack trace: #0 {main}
Process exited with code 255.
Output for 5.2.0 - 5.6.28, hhvm-3.10.0
Catchable fatal error: Method Foo::__toString() must return a string value in /in/HtLiF on line 15
Process exited with code 255.
Output for 5.0.0 - 5.1.6
BarObject id #1
Output for 4.3.0 - 4.4.9
BarObject