Rafrsr\LibArray2Xml\XML2Array::convert()

Complexity

Conditions	16
Paths	12

Size

Total Lines	64
Code Lines	36

Duplication

Lines	0
Ratio	0 %

Importance

Changes	3
Bugs	0	Features	0

<?php
    private static function convert($node)
    {
        $output = [];

        switch ($node->nodeType) {
            case XML_CDATA_SECTION_NODE:
                $output[self::$prefixAttributes . 'cdata'] = trim($node->textContent);
                break;

            case XML_TEXT_NODE:
                $output = trim($node->textContent);
                break;

            case XML_ELEMENT_NODE:
                // for each child node, call the covert function recursively
                for ($i = 0, $m = $node->childNodes->length; $i < $m; $i++) {
                    $child = $node->childNodes->item($i);
                    $v = self::convert($child);
                    if (isset($child->tagName)) {
                        $t = $child->tagName;

                        // assume more nodes of same kind are coming
                        if (!array_key_exists($t, $output)) {
                            $output[$t] = [];
                        }
                        $output[$t][] = $v;
                    } else {
                        //check if it is not an empty text node
                        if ($v !== '') {
                            $output = $v;
                        }
                    }
                }

                if (is_array($output)) {
                    // if only one node of its kind, assign it directly instead if array($value);
                    foreach ($output as $t => $v) {
                        if (is_array($v) && count($v) === 1) {
                            $output[$t] = $v[0];
                        }
                    }
                    if (count($output) === 0) {
                        //for empty nodes
                        $output = '';
                    }
                }

                // loop through the attributes and collect them
                if ($node->attributes->length) {
                    $a = [];
                    foreach ($node->attributes as $attrName => $attrNode) {
                        $a[$attrName] = (string)$attrNode->value;
                    }
                    // if its an leaf node, store the value in @value instead of directly storing it.
                    if (!is_array($output)) {
                        $output = [self::$prefixAttributes . 'value' => $output];
                    }
                    $output[self::$prefixAttributes . 'attributes'] = $a;
                }
                break;
        }

        return $output;
    }
}