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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/** * convert xml string to php array - useful to get a serializable value * * @param string $xmlstr * @return array */ function xmlstr_to_array($xmlstr) { $doc = new DOMDocument(); $doc->loadXML($xmlstr); $root = $doc->documentElement; $output = domnode_to_array($root); $output['@root'] = $root->tagName; return $output; } function domnode_to_array($node) { $output = array(); switch ($node->nodeType) { case XML_CDATA_SECTION_NODE: case XML_TEXT_NODE: $output = trim($node->textContent); break; case XML_ELEMENT_NODE: for ($i=0, $m=$node->childNodes->length; $i<$m; $i++) { $child = $node->childNodes->item($i); $v = domnode_to_array($child); if(isset($child->tagName)) { $t = $child->tagName; if(!isset($output[$t])) { $output[$t] = array(); } $output[$t][] = $v; } elseif($v || $v === '0') { $output = (string) $v; } } if($node->attributes->length && !is_array($output)) { //Has attributes but isn't an array $output = array('@content'=>$output); //Change output into an array. } if(is_array($output)) { if($node->attributes->length) { $a = array(); foreach($node->attributes as $attrName => $attrNode) { $a[$attrName] = (string) $attrNode->value; } $output['@attributes'] = $a; } foreach ($output as $t => $v) { if(is_array($v) && count($v)==1 && $t!='@attributes') { $output[$t] = $v[0]; } } } break; } return $output; } |
Usage is easy.
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$array = xmlstr_to_array($xml); echo 'pre' . print_r($array, true) . '/pre'; |
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