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run code in 150+ php & hhvm versions
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<?php class A { public function __construct() { $this->a = array('a' => $this); } } var_dump(new A());
based on sYYMO
Output for 5.2.14 - 5.2.17, 5.3.3 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
object(A)#1 (1) { ["a"]=> array(1) { ["a"]=> *RECURSION* } }
Output for 5.0.0 - 5.2.13, 5.3.0 - 5.3.2
object(A)#1 (1) { ["a"]=> array(1) { ["a"]=> object(A)#1 (1) { ["a"]=> array(1) { ["a"]=> *RECURSION* } } } }
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/S9YsW on line 4
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/S9YsW on line 4
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/S9YsW on line 4
Process exited with code 255.