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run code in 150+ php & hhvm versions
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<?php class Test { private $name = 'test'; public function __construct() { var_dump($this, $this->name); call_user_func(function () { var_dump($this, $this->name); call_user_func(function () { var_dump($this, $this->name); }); }); } } $test = new Test();
Output for 5.4.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
object(Test)#1 (1) { ["name":"Test":private]=> string(4) "test" } string(4) "test" object(Test)#1 (1) { ["name":"Test":private]=> string(4) "test" } string(4) "test" object(Test)#1 (1) { ["name":"Test":private]=> string(4) "test" } string(4) "test"
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.3.29
object(Test)#1 (1) { ["name":"Test":private]=> string(4) "test" } string(4) "test" Notice: Undefined variable: this in /in/NSJlp on line 8 Fatal error: Using $this when not in object context in /in/NSJlp on line 8
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/NSJlp on line 7
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/NSJlp on line 7
Process exited with code 255.
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/NSJlp 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/NSJlp 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/NSJlp on line 4
Process exited with code 255.