Summary: Parallelization of Tasks in PHP

Review what we’ve learned about parallelization and multithreading in this chapter.

We'll cover the following
  • I/O is difficult and hard to avoid, which makes program parallelization for concurrent code execution an important topic.

  • Functional programming can be combined with parallelism that’s achievable by threading, multi-processing, and message brokerage by virtue of its building blocks. These are pure functions, immutability, composition, and referential transparency.

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