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<?php $dataAgent['Paul'] = array('Sale' => 4,'Conv' => 1.5); $dataAgent['Bill'] = array('Sale' => 6,'Conv' => 5.5); $dataAgent['Tom'] = array('Sale' => 1); $dataAgent['Jake'] = array('Sale' => 6,'Conv' => 10.5); if(array_key_exists("Conv",$dataAgent['Paul'])) { print_r($dataAgent); }

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