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Memory-efficient XML parsing in PHP with XMLReader

Posted by solrac on
IBM/developerWorks; By Elliotte Rusty Harold
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XMLReader operates in streaming mode, that is, it reads the document from start to finish. This makes it very fast, and very efficient.

PHP 5 introduced XMLReader, a new class for reading Extensible Markup Language (XML). Unlike SimpleXML or the Document Object Model (DOM), XMLReader operates in streaming mode, which enables PHP pages to process XML documents in an efficient streaming mode. That is, it reads the document from start to finish. This makes it very fast, and very efficient.

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