src/XQueue/Maileon/API/Mailings/Schedule.php
function toXML($addXMLDeclaration = true) {
        $xmlString = $addXMLDeclaration ? "<?xml version=\"1.0\"?><mailing></mailing>" : "<mailing></mailing>";
        $xml = new SimpleXMLElement($xmlString);

        if (isset($this->minutes)) $xml->addChild("minutes", $this->minutes);
        if (isset($this->hours)) $xml->addChild("hours", $this->hour);
        if (isset($this->state)) $xml->addChild("state", $this->state);
        if (isset($this->date)) $xml->addChild("date", $this->date);

        return $xml;
    }
function toXML($addXMLDeclaration = true) {
        $xmlString = $addXMLDeclaration ? "<?xml version=\"1.0\"?><mailing></mailing>" : "<mailing></mailing>";
        $xml = new SimpleXMLElement($xmlString);

        if (isset($this->minutes)) $xml->addChild("minutes", $this->minutes);
        if (isset($this->hours)) $xml->addChild("hours", $this->hour);
        if (isset($this->state)) $xml->addChild("state", $this->state);
        if (isset($this->date)) $xml->addChild("date", $this->date);

        return $xml;
    }
Serialization to a simple XML element.

@param bool $addXMLDeclaration

@return \em SimpleXMLElement
Generate a XML element from the contact object.