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<?php $closures = array(); $simple_closure = function() { return $this->msg;}; for ($x=0; $x < 2; $x++) { $closures[$x] = $simple_closure; } $obj1 = new stdClass; $obj1->msg = "Top of the morning!\n"; $obj2 = clone($obj1); $obj2->msg = "Happy Days!\n"; $c1 = Closure::bind($closures[0], $obj1); $c2 = Closure::bind($closures[1], $obj2); var_dump($c1,$c2); echo $c1(); echo $c2();
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
object(Closure)#4 (1) { ["this"]=> object(stdClass)#2 (1) { ["msg"]=> string(20) "Top of the morning! " } } object(Closure)#5 (1) { ["this"]=> object(stdClass)#3 (1) { ["msg"]=> string(12) "Happy Days! " } } Top of the morning! Happy Days!
Output for hhvm-3.12.0
object(Closure$;905288691$54a9f5e7b5941551340659e85df5e9c$)#4 (1) { ["this"]=> object(stdClass)#2 (1) { ["msg"]=> string(20) "Top of the morning! " } } object(Closure$;905288691$54a9f5e7b5941551340659e85df5e9c$)#5 (1) { ["this"]=> object(stdClass)#3 (1) { ["msg"]=> string(12) "Happy Days! " } } Top of the morning! Happy Days!
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.3.29
Fatal error: Call to undefined method Closure::bind() in /in/gKn8e on line 18
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/gKn8e on line 5
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 T_FUNCTION in /in/gKn8e on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/gKn8e on line 5
Process exited with code 255.