original_string: protected function _addBranch(Zend_Config $config, SimpleXMLElement $xml, SimpleXMLElement $parent)
      {
          $branchType = null;
  
          foreach ($config as $key => $value) {
              if ($branchType === null) {
                  if (is_numeric($key)) {
                      $branchType = 'numeric';
                      $branchName = $xml->getName();
                      $xml        = $parent;
  
                      unset($parent->{$branchName});
                  } else {
                      $branchType = 'string';
                  }
              } else if ($branchType !== (is_numeric($key) ? 'numeric' : 'string')) {
                  // require_once 'Zend/Config/Exception.php';
                  throw new Zend_Config_Exception('Mixing of string and numeric keys is not allowed');
              }
  
              if ($branchType === 'numeric') {
                  if ($value instanceof Zend_Config) {
                      $child = $parent->addChild($branchName);
  
                      $this->_addBranch($value, $child, $parent);
                  } else {
                      $parent->addChild($branchName, (string) $value);
                  }
              } else {
                  if ($value instanceof Zend_Config) {
                      $child = $xml->addChild($key);
  
                      $this->_addBranch($value, $child, $xml);
                  } else {
                      $xml->addChild($key, (string) $value);
                  }
              }
          }
      }
code: protected function _addBranch(Zend_Config $config, SimpleXMLElement $xml, SimpleXMLElement $parent)
      {
          $branchType = null;
  
          foreach ($config as $key => $value) {
              if ($branchType === null) {
                  if (is_numeric($key)) {
                      $branchType = 'numeric';
                      $branchName = $xml->getName();
                      $xml        = $parent;
  
                      unset($parent->{$branchName});
                  } else {
                      $branchType = 'string';
                  }
              } else if ($branchType !== (is_numeric($key) ? 'numeric' : 'string')) {
                  // require_once 'Zend/Config/Exception.php';
                  throw new Zend_Config_Exception('Mixing of string and numeric keys is not allowed');
              }
  
              if ($branchType === 'numeric') {
                  if ($value instanceof Zend_Config) {
                      $child = $parent->addChild($branchName);
  
                      $this->_addBranch($value, $child, $parent);
                  } else {
                      $parent->addChild($branchName, (string) $value);
                  }
              } else {
                  if ($value instanceof Zend_Config) {
                      $child = $xml->addChild($key);
  
                      $this->_addBranch($value, $child, $xml);
                  } else {
                      $xml->addChild($key, (string) $value);
                  }
              }
          }
      }
code_tokens: protected function _addBranch ( Zend_Config $ config , SimpleXMLElement $ xml , SimpleXMLElement $ parent ) { $ branchType = null ; foreach ( $ config as $ key => $ value ) { if ( $ branchType === null ) { if ( is_numeric ( $ key ) ) { $ branchType = 'numeric' ; $ branchName = $ xml -> getName ( ) ; $ xml = $ parent ; unset ( $ parent -> { $ branchName } ) ; } else { $ branchType = 'string' ; } } else if ( $ branchType !== ( is_numeric ( $ key ) ? 'numeric' : 'string' ) ) { // require_once 'Zend/Config/Exception.php'; throw new Zend_Config_Exception ( 'Mixing of string and numeric keys is not allowed' ) ; } if ( $ branchType === 'numeric' ) { if ( $ value instanceof Zend_Config ) { $ child = $ parent -> addChild ( $ branchName ) ; $ this -> _addBranch ( $ value , $ child , $ parent ) ; } else { $ parent -> addChild ( $ branchName , ( string ) $ value ) ; } } else { if ( $ value instanceof Zend_Config ) { $ child = $ xml -> addChild ( $ key ) ; $ this -> _addBranch ( $ value , $ child , $ xml ) ; } else { $ xml -> addChild ( $ key , ( string ) $ value ) ; } } } }
docstring: Add a branch to an XML object recursively
  
  @param  Zend_Config      $config
  @param  SimpleXMLElement $xml
  @param  SimpleXMLElement $parent
  @return void
docstring_tokens: Add a branch to an XML object recursively