3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function printForTest($a, $b) { var_dump($a); var_dump($b); var_dump (spl_object_hash($a) === spl_object_hash($b) ); print "\n"; } $a = new stdClass; $b = $a; $a->foo = "bar"; list ($cachedA, $cachedB) = unserialize(serialize([$a, $b])); $cachedA->hello = "world"; printForTest($cachedA, $cachedB); unset($cachedA, $cachedB); $cachedA = unserialize(serialize($a)); $cachedB = unserialize(serialize($b)); $cachedA->hello = "world"; printForTest($cachedA, $cachedB);
Output for 5.4.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
object(stdClass)#2 (2) { ["foo"]=> string(3) "bar" ["hello"]=> string(5) "world" } object(stdClass)#2 (2) { ["foo"]=> string(3) "bar" ["hello"]=> string(5) "world" } bool(true) object(stdClass)#2 (2) { ["foo"]=> string(3) "bar" ["hello"]=> string(5) "world" } object(stdClass)#3 (1) { ["foo"]=> string(3) "bar" } bool(false)
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 '[', expecting ')' in /in/71rX8 on line 15
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 '[', expecting ')' in /in/71rX8 on line 15
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/71rX8 on line 15
Process exited with code 255.