Part of the Undergraduate Topics in Computer Science book series (UTICS)


This chapter introduces the concept of user-defined functions in programming and shows how to use functions in PHP scripts. A summary of PHP built-in math constants and functions is provided.

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Institute for Earth Science Research and EducationEaglevilleUSA

Personalised recommendations