Although the design of XML focuses on documents, the language is widely used for the representation of arbitrary data structures such as those used in web services.
Several schema systems exist to aid in the definition of XML-based languages, while programmers have developed many application programming interfaces (APIs) to aid the processing of XML data. XML-based formats have become the default for many office-productivity tools, including Microsoft Office (Office Open XML), Open and Libre Office (Open Document), and Apple's i Work. Apple has an implementation of a registry based on XML.
The RELAX NG specifications have been developed within OASIS by the RELAX NG Technical Committeee.
RELAX NG is also an International Standard (ISO/IEC 19757-2).
It also defines the media types application/xml and text/xml, which say only that the data is in XML, and nothing about its semantics.
The use of text/xml has been criticized RFC 7303 also recommends that XML-based languages be given media types ending in xml; for example image/svg xml for SVG.
In computing, Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.
You have to convert/cast to a String first:echo $array[(string)$val]; This will work as expected, because converting will call the __to String() method. I use this when I need to update values externally (i.e.Therefor echo works too:echo $val; // will display the name Here's a quick way to dump the node Values from Simple XML into an array using the path to each node Value as key. in code that doesn't know about the underlying xml).Then I use DOMXPath to find the node containing the original value and update it.project for extending RELAX NG has started in ISO/IEC JTC1/SC34/WG1. RELAX NG Version 2 is likely to become a new part of ISO/IEC 19757, while RELAX NG Version 1 continues to exist as Part 2 of ISO/IEC 19757. Reads a RELAX NG schema and produces a validator that can validate documents with the given schema. Generated validator can be in Java, C for Win32 (using MSXML4) or C#. The XML Schema Working Group, part of the XML Activity, is responsible for the W3C's work on this topic -- for details see the Working Group's charter.W3C Members can also participate in the W3C XML Schema Interest Group, a forum for the discussion of technical issues relating to the development of XML Schema.See also: Robin Cover's index of XML Schema materials.XML Schema 1.1 (in two parts) is a W3C Recommendation.here is an example array converted from an xml file: array( "@tag"= I had to do the following to catch the fact that my simplexml_load_string call was not working right (it was returning empty objects).$statistik = simplexml_load_string($record,"Simple XMLElement", LIBXML_NSCLEAN,$ns, TRUE); if (($statistik === FALSE) or ($statistik === NULL) or empty($statistik)) before I put the check for "empty()" I was not catching the error. In regexp max length is 6 becouse I found that is the maximum length of possible html entity using this code: Xml Class Testvalue set directly by instance of Testvalue set directly by instance of Testmagic __call called for method set Value on instance of Xml Classvalue set by instance of Xml Class and magic __callvalue set by instance of Xml Class and magic __call while using simple xml and get double or float int value from xml object for using math operations ( * - / ) some errors happens on the operation, this is because of simple xml returns everythings to objects.This will replace just "&" into "&" but dont touches other html-entities like " ", "<" etc and, of course, "&". exmple; Storing Simple XMLElement values in $_SESSION does not work.