PHP recursive parsing array to generate XML problems to ask for help

My basic idea is to iterate through the array to determine if the current element has a sub-array named "Childs" recursively executes this function if any

$config = Array (' root ' = = Array (' childs ' = = Array (' body ' = = = Array (' childs ' = = Array (' scroller ' = = Array (' ch Ilds ' = = Array (' header ' = = Array (' childs ' = = = Array (' simpleheader ' = = Array (' childs ' = = Array (' a ' = = Arra Y ()))), ' items ' = = Array (' childs ' = = Array (' fuck ' = = = Array (' childs ' = = = Array (' B ') ')))))))) Header ("Content-type:text/xml; Charset=utf-8 "); $xml = new XMLWriter (); $xml->openuri (' php://output '); $xml->startdocument (' 1.0 ', ' UTF-8 '); $ Xml->setindent (True), function writeXml ($array) {global $xml; foreach ($array as $key = = $value) {$xml Startelement ($key), if (Isset ($value [' Childs ')) && Is_array ($value [' Childs ']) && count ($value [' Childs ']) > 0) {writeXml ($value [' Childs ']);} $xml->endelement ();} $xml->enddocument (); $xml->flush ();} WRITEXML ($config);

Why is the generated XML wrong? Items ran out to the outside

Reply to discussion (solution)

If you judge the logic of the problem, you take a closer look at
PHP SPL has a recursive device, which is easy to write.

Put
$xml->enddocument ();
$xml->flush ();
Remove the WRITEXML function and finally execute

WRITEXML ($config); $xml->enddocument (); $xml->flush ();

Put
$xml->enddocument ();
$xml->flush ();
Remove the WRITEXML function and finally execute

WRITEXML ($config); $xml->enddocument (); $xml->flush ();

I always thought there was a problem with the logic.

Integral encapsulation into functions

function writeXml ($array, $xml =null) {  if (! $xml) {    header ("Content-type:text/xml; Charset=utf-8 ");    $xml = new XMLWriter ();    $xml->openuri (' php://output ');    $xml->startdocument (' 1.0 ', ' UTF-8 ');    $xml->setindent (true);    WRITEXML ($array, $xml);    $xml->enddocument ();    $xml->flush ();  } else {    foreach ($array as $key = + $value) {        $xml->startelement ($key);        if (Isset ($value [' Childs ']) && is_array ($value [' Childs ']) && count ($value [' Childs ']) > 0) {            WRITEXML ($value [' Childs '], $xml);        }        $xml->endelement ();}}}  

Call WRITEXML ($config);

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