Summary: Introduction to Functional Programming in PHP

Review what we’ve learned in this chapter about functional programming in PHP.

We'll cover the following
  • Functional programming is a cognitive load-reducing paradigm based on the use of pure functions. It has a place in PHP’s vast ecosystem.

  • Functional programming is a long-standing programming approach that emphasizes the use of expressions to architect computer programs.

  • Functional programming has found its way into scripting languages like PHP, JavaScript, Ruby, and Python. In doing so, it has become viable outside of academia.

  • PHP offers a multiparadigm runtime with first-class functions.

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