public function toXMLString()
 {
     $str = '';
     $str .= parent::toXMLString();
     if ($this->ExternalRememberMeID != null) {
         $str .= '<urn:ExternalRememberMeID>' . PPUtils::escapeInvalidXmlCharsRegex($this->ExternalRememberMeID) . '</urn:ExternalRememberMeID>';
     }
     if ($this->ExternalRememberMeOwnerDetails != null) {
         $str .= '<urn:ExternalRememberMeOwnerDetails>';
         $str .= $this->ExternalRememberMeOwnerDetails->toXMLString();
         $str .= '</urn:ExternalRememberMeOwnerDetails>';
     }
     return $str;
 }
 public function toXMLString()
 {
     $flag = 0;
     foreach ($this->ButtonVar as $var) {
         if (strpos($var, 'bn=') !== FALSE) {
             $flag = 1;
             break;
         }
     }
     if (!$flag) {
         array_push($this->ButtonVar, "bn=PayPal_SDK");
     }
     return parent::toXMLString();
 }
 public function toXMLString()
 {
     $str = '';
     $str .= parent::toXMLString();
     if ($this->ExternalRememberMeID != null) {
         //prop is not a collection
         //prop not complex
         //prop is not value
         $str .= '<urn:ExternalRememberMeID>' . $this->ExternalRememberMeID . '</urn:ExternalRememberMeID>';
     }
     if ($this->ExternalRememberMeOwnerDetails != null) {
         //prop is not a collection
         //prop is complex
         //prop is not enum
         //does not contain attribute or is attribute
         $str .= '<urn:ExternalRememberMeOwnerDetails>';
         $str .= $this->ExternalRememberMeOwnerDetails->toXMLString();
         $str .= '</urn:ExternalRememberMeOwnerDetails>';
     }
     return $str;
 }