© Andrew Beak 2017
Andrew BeakPHP 7 Zend Certification Study Guidehttps://doi.org/10.1007/978-1-4842-3246-0_7

7. Data Formats and Types

Andrew Beak
Grafham, Cambridgeshire, UK
This chapter is split into six broad areas:
  • XML
  • SOAP
  • REST web services
  • JSON
  • Date and time
  • PHP SPL data structures
Although this topic is not one of the three high importance areas for the Zend exam, you can expect to be asked a couple of relatively detailed questions from this section.


XML stands for eXtensible Markup Language and is a way to store data in a structured manner. An advantage of using XML is that it is a well recognized data standard and so is a convenient way to exchange data between systems.
In the industry, there has been a shift away from XML and toward ...

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