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run code in 150+ php & hhvm versions
Bugs & Features
<?php class Obj { private $_name; public function getName() { if ($this->_name === null) { // Heavy DB query $this->_name = 'Foo'; } return $this->_name; } } $objects = array(new Obj(), new Obj()); usort($objects, function($a, $b) { if ($a->getName() < $b->getName()) { return 1; } else if ($a->getName() > $b->getName()) { return -1; } return 0; }); var_dump($objects);
Output for hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(2) { [0]=> object(Obj)#1 (1) { ["_name":"Obj":private]=> string(3) "Foo" } [1]=> object(Obj)#2 (1) { ["_name":"Obj":private]=> string(3) "Foo" } }
Output for 5.3.0 - 5.6.28
array(2) { [0]=> object(Obj)#2 (1) { ["_name":"Obj":private]=> string(3) "Foo" } [1]=> object(Obj)#1 (1) { ["_name":"Obj":private]=> string(3) "Foo" } }
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/iPMuR on line 18
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/iPMuR on line 18
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/iPMuR 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/iPMuR 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/iPMuR on line 4
Process exited with code 255.