3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $hello; public function __toString() { return $this->hello; } } $a = new Foo; echo $a;
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
Fatal error: Uncaught TypeError: Foo::__toString(): Return value must be of type string, null returned in /in/53DRD:7 Stack trace: #0 /in/53DRD(13): Foo->__toString() #1 {main} thrown in /in/53DRD on line 7
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Method Foo::__toString() must return a string value in /in/53DRD:13 Stack trace: #0 {main} thrown in /in/53DRD on line 13
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Recoverable fatal error: Method Foo::__toString() must return a string value in /in/53DRD on line 13
Process exited with code 255.
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
Catchable fatal error: Method Foo::__toString() must return a string value in /in/53DRD on line 13
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Method Foo::__toString() must return a string value in /in/53DRD on line 13
Process exited with code 255.
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/53DRD on line 4
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/53DRD on line 4
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/53DRD on line 4
Process exited with code 255.

preferences:
285.78 ms | 401 KiB | 459 Q