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run code in 150+ php & hhvm versions
Bugs & Features
<?php class a { function __construct($b = NULL) { if ($b) $this->b = $b; else $this->b = new b($this); $this->b->test(); } public function test() { echo ($this->b !== NULL) ? __METHOD__.":: b not NULL\n" : __METHOD__." :: b NULL\n"; } } class b { function __construct($a = NULL) { if ($a) $this->a = $a; else $this->a = new a($this); $this->a->test(); } public function test() { echo ($this->a !== NULL) ? __METHOD__.":: a not NULL\n" : __METHOD__." :: a NULL\n"; } } new a;
Output for 5.2.6 - 7.1.0
Notice: Undefined property: a::$b in /in/osUgX on line 12 a::test :: b NULL b::test:: a not NULL
Output for 5.0.0 - 5.2.5
Notice: Undefined property: a::$b in /in/osUgX on line 12 a::test :: b NULL b::test:: a not NULL
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/osUgX on line 10
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/osUgX on line 10
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/osUgX on line 10
Process exited with code 255.