3v4l.org

run code in 200+ php & hhvm versions
<?php class A { public $b; } $a = new A; var_dump($a); // force properties HT unset($a->b); var_dump(serialize($a));
Output for 5.0.0 - 7.2.6
object(A)#1 (1) { ["b"]=> NULL } string(12) "O:1:"A":0:{}"
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/KiLqN on line 3
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_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/KiLqN on line 3
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/KiLqN on line 3
Process exited with code 255.