The function we provided in our last article that converted an XML file to a PHP array didn't support attributes and child nodes. This function, authored by Adrien (aka Gaarf), will build a nice array with all relevant nested data supported. It's slow, but it performs as advertised.
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<?php
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/**
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* convert xml string to php array - useful to get a serializable value
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*
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* @param string $xmlstr
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* @return array
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*/
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function xmlstr_to_array($xmlstr) {
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$doc = new DOMDocument();
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$doc->loadXML($xmlstr);
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$root = $doc->documentElement;
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$output = domnode_to_array($root);
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$output['@root'] = $root->tagName;
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return $output;
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}
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function domnode_to_array($node) {
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$output = array();
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switch ($node->nodeType) {
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case XML_CDATA_SECTION_NODE:
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case XML_TEXT_NODE:
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break;
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case XML_ELEMENT_NODE:
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for ($i=0, $m=$node->childNodes->length; $i<$m; $i++) {
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$child = $node->childNodes->item($i);
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$v = domnode_to_array($child);
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if(isset($child->tagName)) {
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$t = $child->tagName;
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if(!isset($output[$t])) {
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$output[$t] = array();
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}
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$output[$t][] = $v;
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}
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elseif($v || $v === '0') {
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$output = (string) $v;
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}
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}
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$output = array('@content'=>$output); //Change output into an array.
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}
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if($node->attributes->length) {
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$a = array();
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foreach($node->attributes as $attrName => $attrNode) {
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$a[$attrName] = (string) $attrNode->value;
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}
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$output['@attributes'] = $a;
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}
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foreach ($output as $t => $v) {
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$output[$t] = $v[0];
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}
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}
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}
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break;
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}
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return $output;
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}
Usage is easy.
