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This article describes how to troubleshoot the “String could not be parsed as XML” error message in PHP.

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Problem

When you try to parse XML data in a PHP script, you receive the following error message:

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Resolution

The most likely cause of this error is that the XML data you are trying to process is not valid. Alternatively, the XML data may contain non-standard characters or use a different character set encoding. There are several websites that can validate XML data. For example, the website http://www.xmlvalidation.com can check basic XML syntax, as well as validate XML data against external schema, such as DTD (Document Type Definition) documents.