How Can I Format SimpleXML Output in PHP to Improve Readability?

Formatting SimpleXML Output in PHP

When working with XML data in PHP using SimpleXML, it can be useful to format the output for readability or compatibility. This includes adding line breaks to separate elements and make the XML more human-readable.

Problem:

The asXML() function of SimpleXML adds all the XML data into a single line by default, which can make it difficult to read and manipulate.

Solution:

To introduce line breaks into the output of asXML(), you can use the DOMDocument class. Here's how:

1. Create a new DOMDocument object:

   $dom = new DOMDocument('1.0');

2. Disable whitespace preservation and enable output formatting:

   $dom->preserveWhiteSpace = false;
   $dom->formatOutput = true;

3. Load the SimpleXML output into the DOMDocument:

   $dom->loadXML($simpleXml->asXML());

4. Output the formatted XML:

   echo $dom->saveXML();

By using these steps, you can effectively format your SimpleXML output with line breaks, making the XML more readable and easier to handle.

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