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<?php $arr = Array ( "chann_1" => 155.755, "chann_2" => 154.61, "chann_3" => 156.719, "chann_4" => 156.727, "chann_5" => 155.797, "chann_6" => 157.615, "chann_7" => 154.257, "chann_8" => 151.724, "chann_9" => 156.549, "chann_10" => 156.594, "chann_11" => 157.56, "chann_12" => 156.405 ); Arsort($arr); $keys = array_keys($arr); Echo $keys[round(count($keys)/2)];
Output for git.master, git.master_jit, rfc.property-hooks
chann_12

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