What are some PHP functions or libraries that can be used to retrieve and process XML content from an external API?

When working with external APIs that return XML content, you can use PHP functions like `simplexml_load_file()` or libraries like `DOMDocument` to retrieve and process the XML data. These functions and libraries allow you to easily parse the XML content and extract the necessary information for further processing in your application. 

// Example using simplexml_load_file()
$xml = simplexml_load_file('https://api.example.com/data.xml');

// Accessing XML elements
foreach ($xml->children() as $child) {
    echo $child->getName() . ": " . $child . "<br>";
}

// Example using DOMDocument
$doc = new DOMDocument();
$doc->load('https://api.example.com/data.xml');

// Accessing XML elements
$nodes = $doc->getElementsByTagName('node');
foreach ($nodes as $node) {
    echo $node->nodeValue . "<br>";
}

Keywords

SimpleXMLElement file_get_contents cURL DOMDocument xml_parse_into_struct

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