array-to-simplexml-2.php

<?php
/**
 * php array to xml conversion even for nested data
 *
 * @link http://stackoverflow.com/q/14136714/367456
 * @see http://stackoverflow.com/a/14143759/367456 for description
 * @author hakre <http://hakre.wordpress.com/credits>
 */

$array = [
    'name'   => 'ABC',
    'email'  => '[email protected]',
    'phones' =>
    [
        'phone' =>
        [
            [
                'mobile' => '9000199193',
                'land'   => ' 9999999 ',
            ],
            [
                'mobile' => '9000199193',
                'land'   => ' 9999999 ',
            ],
            [
                'mobile' => '9000199194',
                'land'   => ' 5555555 ',
            ],
            [
                'mobile' => '9000199195',
                'land'   => ' 8888888 ',
            ],
        ],
    ],
];

$createArrayImporter = function (SimpleXMLElement $subject) {

    $add = function (SimpleXMLElement $subject, $key, $value) use (&$add) {

        $hasKey    = is_string($key);
        $isString  = is_string($value);
        $isArray   = is_array($value);
        $count     = count($value);
        $isIndexed = $isArray && $count > 1 && array_keys($value) === range(0, $count - 1);
        $isKeyed   = $isArray && $count && !$isIndexed;

        switch (true) {
            case $isString && $hasKey:
                return $subject->addChild($key, $value);

            case $isIndexed && $hasKey:
                foreach ($value as $oneof_value) {
                    $add($subject, $key, $oneof_value);
                }
                return $subject->$key;

            case $isKeyed && $hasKey:
                $subject = $subject->addChild($key);
                // fall-through intended

            case $isKeyed:
                foreach ($value as $oneof_key => $oneof_value) {
                    $add($subject, $oneof_key, $oneof_value);
                }
                return true;

            default:
                trigger_error('Unknown Nodetype ' . print_r($value, 1));
        }
    };

    return function (Array $array) use ($subject, $add) {

        $add($subject, null, $array);
        return $subject;
    };
};


# require('inc/simplexml_pretty_print.php');
/**
 * @param SimpleXMLElement $SimpleXML
 * @return string
 * @link http://stackoverflow.com/a/798986/367456
 */
function simplexml_pretty_print(SimpleXMLElement $SimpleXML) {
    $dom                     = new DOMDocument();
    $dom->preserveWhiteSpace = false;
    $dom->formatOutput       = true;
    $dom->loadXML($SimpleXML->asXML());
    return $dom->saveXML();
}


$xml      = new SimpleXMLElement('<root/>');
$importer = $createArrayImporter($xml);
echo simplexml_pretty_print($importer($array));