Parsing XML in PHP with DOMDocument, XMLReader, and DOMXPath
The article provides a step‑by‑step guide on parsing XML in PHP, showcasing three techniques—DOMDocument, XMLReader, and DOMXPath—to extract weather data such as condition and temperature, complete with full code examples and explanations of key functions.
This article demonstrates how to parse XML data in PHP using three different approaches: DOMDocument, XMLReader, and DOMXPath.
It first shows a sample XML response from a weather API and explains how to load it with DOMDocument::loadXML($content) , retrieve elements with getElementsByTagName , and extract attribute values using getAttribute .
Next, it presents an XMLReader example that sequentially reads nodes, captures the first condition and temp_c attributes, and outputs the weather information.
Finally, the article illustrates using DOMXPath to query the XML tree directly, selecting the current_conditions node and obtaining the same data via a helper function.
All code snippets are provided, and the article notes that these methods (loadXML, item, getAttribute, getElementsByTagName, etc.) are useful for backend development tasks involving XML parsing.
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