将xml转换/反序列化为数组以与其接口是错误的吗？

Question

Consider a SOAP response with lots of nodes, I've noticed some developers using a PEAR Unserialize class while I've always been using simple_xml. Are there any disadvantages to interfacing if you aren't really doing any XML transformation or rendering but simply using data from it.

Answer 1

If your XML data fits in an array, then this is fine. Most XML schemas are more complex than that and need a tree structure.

De-serializing your XML into some more convenient runtime structure is very common, XML is somewhat expensive to traverse, its designed for data interchange rather than for data access, so it's often wisest to just parse the whole document once.