3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function create($foo) { $bar = new stdClass; $foo->bar = $bar; $bar->foo = $foo; } gc_collect_cycles(); create(new stdClass()); var_dump(gc_collect_cycles()); // expected '2', actual '2' create((new ArrayObject())->setFlags(ArrayObject::STD_PROP_LIST)); var_dump(gc_collect_cycles()); // expected '2', actual '0'
based on LQ2Uv
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
int(2) Warning: Creating default object from empty value in /in/Vf7Bq on line 5 int(2)
Output for hhvm-3.12.0
int(0) Warning: Creating default object from empty value in /in/Vf7Bq on line 5 int(0)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/Vf7Bq on line 14
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_OBJECT_OPERATOR in /in/Vf7Bq on line 14
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Vf7Bq on line 14
Process exited with code 255.