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<?php class test { protected $val; public function __construct($val) { $this->$val = $val; } public function getVal() { return $this->val; } } $arr = array( 'one' => new test(3), 'two' => new test(2), 'three' => new test(1) ); uasort($arr, function (test $a, test $b) { if ($a->getVal() == $b->getVal()) { return 0; } return ($a->getVal() < $b->val()) ? -1 : 1; }); print_r($arr);
Output for hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [one] => test Object ( [val:protected] => [3] => 3 ) [two] => test Object ( [val:protected] => [2] => 2 ) [three] => test Object ( [val:protected] => [1] => 1 ) )
Output for 5.3.0 - 5.6.28
Array ( [three] => test Object ( [val:protected] => [1] => 1 ) [two] => test Object ( [val:protected] => [2] => 2 ) [one] => test Object ( [val:protected] => [3] => 3 ) )
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/qZ4g2 on line 21
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/qZ4g2 on line 21
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/qZ4g2 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/qZ4g2 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/qZ4g2 on line 4
Process exited with code 255.