3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class A { public $a; } class B extends A { public $b; } $a = new B(); $a->a = 0; $a->b = 1; $b = new B(); $b->a = 1; $b->b = 0; var_dump($a < $b); print_r($a, true); var_dump($a < $b);
based on B21a5
Output for 5.4.0 - 5.6.30, 7.0.0 - 7.2.9
bool(true) bool(false)
Output for 5.0.0 - 5.3.29, hhvm-3.10.1 - 3.22.0
bool(false) bool(false)
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/2figq 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/2figq 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/2figq on line 3
Process exited with code 255.