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run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(&$a); var_dump($a);
Output for 5.2.14 - 5.2.17, 5.3.3 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
array(1) { [0]=> &array(1) { [0]=> *RECURSION* } }
Output for 4.3.0 - 5.2.13, 5.3.0 - 5.3.2
array(1) { [0]=> &array(1) { [0]=> &array(1) { [0]=> *RECURSION* } } }