if (!$keywordEstimateRequest->isNegative) {
            $keyword = $keywordEstimateRequest->keyword;
            $keywordEstimate = $keywordEstimates[$i];
            // Find the mean of the min and max values.
            $meanAverageCpc = ($keywordEstimate->min->averageCpc->microAmount + $keywordEstimate->max->averageCpc->microAmount) / 2;
            $meanAveragePosition = ($keywordEstimate->min->averagePosition + $keywordEstimate->max->averagePosition) / 2;
            $meanClicks = ($keywordEstimate->min->clicksPerDay + $keywordEstimate->max->clicksPerDay) / 2;
            $meanTotalCost = ($keywordEstimate->min->totalCost->microAmount + $keywordEstimate->max->totalCost->microAmount) / 2;
            printf("Results for the keyword with text '%s' and match type '%s':\n", $keyword->text, $keyword->matchType);
            printf("  Estimated average CPC in micros: %.0f\n", $meanAverageCpc);
            printf("  Estimated ad position: %.2f \n", $meanAveragePosition);
            printf("  Estimated daily clicks: %d\n", $meanClicks);
            printf("  Estimated daily cost in micros: %.0f\n\n", $meanTotalCost);
        }
    }
}
// Don't run the example if the file is being included.
if (__FILE__ != realpath($_SERVER['PHP_SELF'])) {
    return;
}
try {
    // Get AdWordsUser from credentials in "../auth.ini"
    // relative to the AdWordsUser.php file's directory.
    $user = new AdWordsUser();
    // Log every SOAP XML request and response.
    $user->LogAll();
    // Run the example.
    EstimateKeywordTrafficExample($user);
} catch (Exception $e) {
    printf("An error has occurred: %s\n", $e->getMessage());
}
 public function testEstimateKeywordTrafficExample()
 {
     EstimateKeywordTrafficExample($this->user);
 }