将数组转换为XML或JSON

这适用于关联数组。

    function array2xml($array, $node_name="root") {    $dom = new DOMdocument('1.0', 'UTF-8');    $dom->formatOutput = true;    $root = $dom->createElement($node_name);    $dom->appendChild($root);    $array2xml = function ($node, $array) use ($dom, &$array2xml) {        foreach($array as $key => $value){ if ( is_array($value) ) {     $n = $dom->createElement($key);     $node->appendChild($n);     $array2xml($n, $value); }else{     $attr = $dom->createAttribute($key);     $attr->value = $value;     $node->appendChild($attr); }        }    };    $array2xml($root, $array);    return $dom->saveXML();}