Online PHP editor | output for USJWu

@ 2020-12-11T13:37:01Z

<?php

final class XmlHelper extends SimpleXMLElement {

    /**
     * @param string           $name
     * @param float|int|string $value
     * @param null|string      $namespace
     * @param null|int|string  $maxlength
     *
     * @return static
     */
    public function addChild($name, $value = null, $namespace = null, $maxlength = null) {
        if ($maxlength) {
            $value = substr((string)$value, 0, (int)$maxlength);
        }
		
        return parent::addChild($name, (string)$value, $namespace);
    }

}


$xml = new XmlHelper(
    '<DISPATCHNOTIFICATION version="2.1" xmlns="http://www.opentrans.org/XMLSchema/2.1"
                      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                      xsi:schemaLocation="http://www.opentrans.org/XMLSchema/2.1 opentrans_2_1.xsd"
                      xmlns:bmecat="http://www.bmecat.org/bmecat/2005"
                      xmlns:xmime="http://www.w3.org/2005/05/xmlmime">
                    </DISPATCHNOTIFICATION>'
);
$DISPATCHNOTIFICATION_HEADER = $xml->addChild('DISPATCHNOTIFICATION_HEADER');
var_dump($DISPATCHNOTIFICATION_HEADER, $xml->saveXML());

Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3: Deprecated: Return type of XmlHelper::addChild($name, $value = null, $namespace = null, $maxlength = null) should either be compatible with SimpleXMLElement::addChild(string $qualifiedName, ?string $value = null, ?string $namespace = null): ?SimpleXMLElement, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/USJWu on line 13 object(XmlHelper)#2 (0) { } string(409) "<?xml version="1.0"?> <DISPATCHNOTIFICATION xmlns="http://www.opentrans.org/XMLSchema/2.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bmecat="http://www.bmecat.org/bmecat/2005" xmlns:xmime="http://www.w3.org/2005/05/xmlmime" version="2.1" xsi:schemaLocation="http://www.opentrans.org/XMLSchema/2.1 opentrans_2_1.xsd"> <DISPATCHNOTIFICATION_HEADER/></DISPATCHNOTIFICATION> "
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30: object(XmlHelper)#2 (0) { } string(409) "<?xml version="1.0"?> <DISPATCHNOTIFICATION xmlns="http://www.opentrans.org/XMLSchema/2.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bmecat="http://www.bmecat.org/bmecat/2005" xmlns:xmime="http://www.w3.org/2005/05/xmlmime" version="2.1" xsi:schemaLocation="http://www.opentrans.org/XMLSchema/2.1 opentrans_2_1.xsd"> <DISPATCHNOTIFICATION_HEADER/></DISPATCHNOTIFICATION> "

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