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<?php class myClass { private $a = [ 'foo-test' => [1], '-' => [2], 'bar-test' => [3] ]; private function _mySort($x, $y) { var_dump($this->a); return $x < $y; } public function __construct() { uksort($this->a, [$this, '_mySort']); } } new myClass();

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