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- SimpleXML is meant to be an easy way to access XML data.
- SimpleXML objects follow four basic rules:
- 1) properties denote element iterators
- 2) numeric indices denote elements
- 3) non numeric indices denote attributes
- 4) string conversion allows to access TEXT data
- When iterating properties then the extension always iterates over
- all nodes with that element name. Thus method children() must be
- called to iterate over subnodes. But also doing the following:
- foreach ($obj->node_name as $elem) {
- // do something with $elem
- }
- always results in iteration of 'node_name' elements. So no further
- check is needed to distinguish the number of nodes of that type.
- When an elements TEXT data is being accessed through a property
- then the result does not include the TEXT data of subelements.
- Known issues
- ============
- Due to engine problems it is currently not possible to access
- a subelement by index 0: $object->property[0].
- TODO
- ====
- At the moment property access to multiple elements of the same
- name returns an array of SimpleXML objects. This should be an
- object of a new type instead so that all kinds of linkage,
- assignment and deleting would work.
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