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<?php $alternatives = array( 'foo:bar' => 1, 'foo:bar1' => 1, 'foo1:bar' => -4, ); asort($alternatives); print_r($alternatives); print_r(array_keys($alternatives));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [foo1:bar] => -4 [foo:bar] => 1 [foo:bar1] => 1 ) Array ( [0] => foo1:bar [1] => foo:bar [2] => foo:bar1 )

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