PHP XMLLesson 75Free preview

PHP DOM Parser

This lesson is part of PHP · All levels

Summary

DOM treats XML as a node tree through the DOMDocument class, so we can read and edit the structure at the same time. You load the document with load() or loadXML(), then search for the element using getElementsByTagName(). To add or delete data, createElement, appendChild, and removeChild are available, and the results are saved via save() or saveXML().

Key points

The DOMDocument represents the entire document as a node tree.
It's reading from the file, from the string.
GetElementsByTagName() collects elements by name, complete with item(0).
CreateElement and appendChild are used to add nodes, save() write results to the file.

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