I have a method which is based on this function: https://github.com/gaarf/XML-string-to-PHP-array/blob/master/xmlstr_to_array.php
Now I altered it to suit my needs, which looks like this now:
private function parseXml($xmlString)
{
$doc = new \DOMDocument;
$doc->loadXML($xmlString);
$root = $doc->documentElement;
$output[$root->tagName] = $this->domnodeToArray($root);
return $output;
}
/**
* @param $node
* @return array|string
*/
private function domNodeToArray($node)
{
$output = [];
switch ($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 = $this->domNodeToArray($child);
if (isset($child->tagName))
{
$t = $child->tagName;
if (!isset($output['value'][$t]))
{
$output['value'][$t] = [];
}
$output['value'][$t][] = $v;
}
else if ($v || $v === '0')
{
$output['value'] = (string)$v;
}
}
if (isset($output['value']) && $node->attributes->length && !is_array($output['value']))
{
$output = ['value' => $output['value']];
}
if (!$node->attributes->length && isset($output['value']) && !is_array($output['value']))
{
$output = ['attributes' => [], 'value' => $output['value']];
}
if (isset($output['value']) && is_array($output['value']))
{
if ($node->attributes->length)
{
$a = [];
foreach ($node->attributes as $attrName => $attrNode)
{
$a[$attrName] = (string)$attrNode->value;
}
$output['attributes'] = $a;
}
else
{
$output['attributes'] = [];
}
foreach ($output['value'] as $t => $v)
{
if (is_array($v) && count($v) == 1 && $t != 'attributes')
{
$output['value'][$t] = $v[0];
}
}
}
break;
}
return $output;
}
Taking an example XML/XSD string and trying to convert it to an array with the method above (parseXML), will result in the loss of some attributes, but only when using my altered version, it works properly with the methods provided in the github repository.
The example XSD string looks like so:
$xsdStr = '<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="book">
<xs:complexType>
<xs:sequence>
<xs:element name="title">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="40"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="author">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="40"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="character" maxOccurs="unbounded" minOccurs="0">
<xs:complexType>
<xs:sequence>
<xs:element name="name">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="40"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="friend-of" maxOccurs="unbounded" minOccurs="0">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="40"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="since" type="xs:date"/>
<xs:element name="qualification" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="isbn" use="required">
<xs:simpleType>
<xs:restriction base="xs:integer">
<xs:totalDigits value="10"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:complexType>
</xs:element>
</xs:schema>';
echo '<pre>';
echo print_r($this->parseXml($xsdStr), true);
The output of this array will looks like so (print_r): https://pastebin.com/sYvf5Z4X (using URL as it will exceed the character limit).
To make it easier, the maxLength tag loses its attribute value with the value 40 in all occurrences of it. I simply can't see why that is happening with my altered version, but not the original code.
