3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $originalObj = new A; class A { var $foo = 'default value'; } // Important note: If you remove the &, the bug disappears. function changeFooWithUnusedReference( &$unusedReferenceToFoo, $newValue ) { global $originalObj; $newObj = clone $originalObj; echo $originalObj->foo . "\n"; echo $newObj->foo . "\n"; $newObj->foo = $newValue; echo $originalObj->foo . "\n"; echo $newObj->foo . "\n"; } changeFooWithUnusedReference( $originalObj->foo, 'Some other value' ); gc_collect_cycles();
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
default value default value Some other value Some other value
Output for 5.1.3 - 5.2.17
default value default value Some other value Some other value Fatal error: Call to undefined function gc_collect_cycles() in /in/YXQka on line 20
Process exited with code 255.
Output for 5.0.0 - 5.1.2
Strict Standards: var: Deprecated. Please use the public/private/protected modifiers in /in/YXQka on line 4 default value default value Some other value Some other value Fatal error: Call to undefined function gc_collect_cycles() in /in/YXQka on line 20
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_VARIABLE in /in/YXQka on line 9
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_VARIABLE in /in/YXQka on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/YXQka on line 9
Process exited with code 255.