public function testAddLocationExtensionExample()
 {
     AddLocationExtensionExample($this->user, $this->campaignId);
 }
    $locationExtension->phoneNumber = '(650) 253-0000';
    // Create campaign ad extension.
    $campaignAdExtension = new CampaignAdExtension();
    $campaignAdExtension->campaignId = $campaignId;
    $campaignAdExtension->adExtension = $locationExtension;
    // Create operation.
    $operation = new CampaignAdExtensionOperation();
    $operation->operand = $campaignAdExtension;
    $operation->operator = 'ADD';
    $operations = array($operation);
    // Make the mutate request.
    $result = $campaignAdExtensionService->mutate($operations);
    // Display result.
    $campaignAdExtension = $result->value[0];
    printf("Location extension with street address '%s' and id '%s' was added.\n", $campaignAdExtension->adExtension->address->streetAddress, $campaignAdExtension->adExtension->id);
}
// Don't run the example if the file is being included.
if (__FILE__ != realpath($_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.
    $user->LogAll();
    // Run the example.
    AddLocationExtensionExample($user, $campaignId);
} catch (Exception $e) {
    printf("An error has occurred: %s\n", $e->getMessage());
}