How to convert php array to xml

How to convert php array to xml: first create a PHP sample file; then create an arrayToXml method; finally pass "$xml.="<".$key.">< in the method body ![CDATA[".$val."]]>";" Just convert the array into xml.

The operating environment of this article: Windows 7 system, PHP version 7.1, DELL G3 computer.

Convert php array to XML format, and convert XML format to array

//数组转XML
function arrayToXml($arr)
{
    $xml = "<xml>";
    foreach ($arr as $key=>$val)
    {
        if (is_numeric($val)){
            $xml.="<".$key.">".$val."</".$key.">";
        }else{
            $xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
        }
    }
    $xml.="</xml>";
    return $xml;
}
//将XML转为array
function xmlToArray($xml)
{
    //禁止引用外部xml实体
    libxml_disable_entity_loader(true);
    $values = json_decode(json_encode(simplexml_load_string($xml, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA)), true);
    return $values;
}

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