3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = new class {public $b;}; $b = clone $a; $a->b = $b; $b->b = $a; var_dump($a == $b);
Output for 7.0.0 - 7.3.2
Fatal error: Nesting level too deep - recursive dependency? in /in/sgV9E on line 9
Process exited with code 255.
Output for hhvm-3.22.0
Fatal error: Uncaught Error: infinite recursion detected in /in/sgV9E:-1 Stack trace: #0 {main}
Process exited with code 255.
Output for hhvm-3.21.0 - 3.21.3
Fatal error: Uncaught Error: infinite recursion detected in /in/sgV9E:9 Stack trace: #0 {main}
Process exited with code 255.
Output for hhvm-3.17.3 - 3.20.2

Process exited with code 139.
Output for hhvm-3.15.4
Assertion failure: /tmp/tmp.IY1ufrEsc9/hphp/runtime/base/runtime-error.cpp:48: void HPHP::raise_error(const string&): assertion `0' failed.
Process exited with code 134.
Output for hhvm-3.13.2
Assertion failure: /tmp/tmp.7cqYbndD88/hphp/runtime/base/runtime-error.cpp:48: void HPHP::raise_error(const string&): assertion `0' failed.
Process exited with code 134.
Output for hhvm-3.12.14
Assertion failure: /tmp/tmp.V3wJAhcnRu/hphp/runtime/base/runtime-error.cpp:48: void HPHP::raise_error(const string&): assertion `0' failed.
Process exited with code 134.
Output for hhvm-3.11.1
Assertion failure: /tmp/tmp.6N2uyq9UKg/hphp/runtime/base/runtime-error.cpp:48: void HPHP::raise_error(const string&): assertion `0' failed.
Process exited with code 134.
Output for hhvm-3.10.1
Fatal error: syntax error, unexpected T_CLASS, expecting '[' or '{' in /in/sgV9E on line 3
Process exited with code 255.
Output for 5.4.0 - 5.6.38
Parse error: syntax error, unexpected 'class' (T_CLASS) in /in/sgV9E on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CLASS in /in/sgV9E on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/sgV9E on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/sgV9E on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `'$'' in /in/sgV9E on line 3
Process exited with code 255.