How to load schema, set properties and output a string without SDO?

Question

After struggling with installing SDO on the server I found some information that SDO is not going to be further developed/supported.

How could this be done without SDO?

$das = SDO_DAS_XML::create("$someSchemaFile");
$doc = $das->createDocument();
$root = $doc->getRootDataObject();
$root->Data1 = 'data1';
$root->Data2 = 'data2';
$string = $das->saveString($doc);

Schema (pseudo)

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:cc="http://cc/XMLSchema">
    <xsd:element name="SomeName">
        <xsd:complexType>
            <xsd:sequence>
                <xsd:element name="Data1" type="xsd:string"/>
                <xsd:element name="Data2" type="xsd:string"/>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
</xsd:schema>

So your goal is lot load a schema file (xsd), set some properties in the XML, and output the XML string? Can you post the contents of the xsd? — Michael Berkowski, Aug 29 '14 at 14:08
Yes that is exactly my goal. Unfortunately I can't post the schema file. — James May, Aug 29 '14 at 14:17
Can you invent a schema file that is abbreviated and similar in spirit & structure to the one you can't post? — Michael Berkowski, Aug 29 '14 at 14:18
Could you maybe update the question title to summarise what "this" is? Would make for a more useful and easily found question. — deceze, Aug 29 '14 at 15:01
@deceze Sure, I have changed the title, thank you. Please feel free to edit it if you think it could be improved. — James May, Aug 29 '14 at 16:12

score 2 · Accepted Answer · answered Aug 29 '14 at 18:10

XSD is XML itself, so you have several ways to go about it, like for instance DomDocument. But the easiest way would probably be SimpleXML, it's not quite as powerful but mostly you don't need that anyway.

Here's a little example:

$xml = <<<XML <?xml version="1.0" encoding="UTF-8"?> 
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
            xmlns:cc="http://cc/XMLSchema">
    <xsd:element name="SomeName">
        <xsd:complexType>
            <xsd:sequence>
                <xsd:element name="Data1" type="xsd:string"/>
                <xsd:element name="Data2" type="xsd:string"/>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element> </xsd:schema> 
XML;

$doc = simplexml_load_string($xml);

// get the first xsd:element node with a name-attribute of 'Data1' 
$element = $doc->xpath("//xsd:element[@name='Data1']")[0];

// change the name-attribute: 
$element->attributes()->name = 'SomeOtherName';

// or even add another attribute: 
$element->addAttribute('newAttribute', 'newAttributeValue');

// and spit it out as XML again:
echo $doc->asXML();

I hope this helps, since I'm not quite sure if that's what you had in mind. But as far as I understood your question you're just looking for an alternative / easy way to manipulate an XML file.

How to load schema, set properties and output a string without SDO?

1 Answers1