title: Print_r doesn't return anything; var_dump shows NULL
body: <p>I'm new to web dev and I'm experimenting with Braintree webhooks. I'm using their create submerchant example code to create a submerchant and then supposedly a notification is supposed to reach my server that says if it was successful or not. </p>
  
  <p><strong>My method:</strong> I refresh the submerchant.php page (I'm using Wordpress on a NameCheap server), which then <code>echo</code>'s "Success!". Then I go to the webhooks.php page and refresh it. However, the <code>var_dump</code>'s only return <code>NULL NULL</code> and the <code>print_r</code>'s don't return anything. Why does <code>print_r</code> not show anything?</p>
  
  <p><strong>submerchant.php</strong> - this creates the submerchant when I set <code>$one = 1</code> and set a new <code>id</code> for the submerchant</p>
  
  <pre><code>&lt;?php
  
  require_once(__DIR__ . '/../braintree/lib/Braintree.php');
  
  Braintree_Configuration::environment('sandbox');
  Braintree_Configuration::merchantId('A');
  Braintree_Configuration::publicKey('B');
  Braintree_Configuration::privateKey('C');
  
   function fd_create_sm() {
  
      $one;
  
      $one = 1;
  
      if($one=1) {
  
      $merchantAccountParams = [
        'individual' =&gt; [
          'firstName' =&gt; 'Janez',
          'lastName' =&gt; 'Doe',
          'email' =&gt; 'jane@14ladders.com',
          'phone' =&gt; '5553334444',
          'dateOfBirth' =&gt; '1981-11-19',
          'ssn' =&gt; '456-45-4567',
          'address' =&gt; [
            'streetAddress' =&gt; '111 Main St',
            'locality' =&gt; 'Chicago',
            'region' =&gt; 'IL',
            'postalCode' =&gt; '60622'
          ]
        ],
        'business' =&gt; [
          'legalName' =&gt; 'Jane\'s Ladders',
          'dbaName' =&gt; 'Jane\'s Ladders',
          'taxId' =&gt; '98-7654321',
          'address' =&gt; [
            'streetAddress' =&gt; '111 Main St',
            'locality' =&gt; 'Chicago',
            'region' =&gt; 'IL',
            'postalCode' =&gt; '60622'
          ]
        ],
        'funding' =&gt; [
          'descriptor' =&gt; 'Red Ladders',
          'destination' =&gt; Braintree_MerchantAccount::FUNDING_DESTINATION_BANK,
          'email' =&gt; 'funding@blueladders.com',
          'mobilePhone' =&gt; '5555555555',
          'accountNumber' =&gt; '1123581321',
          'routingNumber' =&gt; '071101307'
        ],
        'tosAccepted' =&gt; true,
        'masterMerchantAccountId' =&gt; "na",
        'id' =&gt; "green_ladders"
      ];
      $result = Braintree_MerchantAccount::create($merchantAccountParams);
  
      $result-&gt;success;
      if($result-&gt;success) {
      echo 'Success!';
      } else {
  
      print_r($result-&gt;errors);
  
              $errordata;
              echo '***********';
              $BT_Errors = new Braintree_Error_ErrorCollection($errordata);
              echo '***********';
              $BT_Errors-&gt;deepAll();
              echo '***********';
              $BT_Errors-&gt;onHtmlField("transaction[amount]");
  
      }
  
      $result-&gt;merchantAccount-&gt;status;
  
      $result-&gt;merchantAccount-&gt;id;
      // "blue_ladders_store"
      $result-&gt;merchantAccount-&gt;masterMerchantAccount-&gt;id;
      // "14ladders_marketplace"
      $result-&gt;merchantAccount-&gt;masterMerchantAccount-&gt;status;
      // "active"
  
      } else {
      return;
  
      }
   }
  
  fd_create_sm();
  
  ?&gt;
  </code></pre>
  
  <p><strong>webhooks.php</strong> </p>
  
  <pre><code>&lt;?php
  
  var_dump($_POST['bt_signature']);
  var_dump($_POST['bt_payload']);
  
  print_r($_POST['bt_signature']);
  print_r($_POST['bt_payload']);
  
  ?&gt;
  </code></pre>