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<?php $a = [ NAN, NAN, 1.2, NAN, 3.2, NAN, 2.4, ]; sort($a); print_r($a); $a = [ 1.2, NAN, 3.2, 2.4, ]; rsort($a); print_r($a); echo 1 <=> NAN, NAN <=> 1, NAN <=> NAN; // 111
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => NAN [1] => 2.4 [2] => NAN [3] => 1.2 [4] => 3.2 [5] => NAN [6] => NAN ) Array ( [0] => 1.2 [1] => NAN [2] => 3.2 [3] => 2.4 ) 111

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