How to Transform Multidimensional Arrays into XML Using Iteration?

Transforming Multidimensional Array to XML Using Iteration

Iterative methods provide an alternative approach to recursively transforming multidimensional arrays into XML strings. By utilizing iterators, developers can achieve greater control and flexibility while ensuring the output adheres to valid XML syntax.

One such iterator, TranformArrayIterator, extends the RecursiveIteratorIterator class and overrides key iteration and indentation functions. It begins and ends iterations with the startElement and endElement methods of the XmlWriter instance.

For each node in the array, it generates XML elements using writeElement. The depth of each node determines the indentation level. To prevent key printing, the key method is overridden with an empty return value.

Alternatively, passing an XmlWriter instance to the iterator allows for direct XML generation. The TranformArrayIterator class leverages the startDocument, endDocument, startElement, and endElement methods of the XmlWriter to create a formatted XML string.

The output is consistent with the desired XML structure, with nodes nested appropriately and indentation reflecting the node depth. Both approaches effectively transform multidimensional arrays into XML strings using iteration, providing efficient and customizable solutions.

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