Tagged with showdev, php, cli, beginners. PHP is more than capable of building command line applications for use in Linux or macOS. Make a new directory cli-app. Building a command line app in PHP. The complete package from option handling to writing a man page.
If you’re like me, you’re more comfortable writing simple scripts in PHP than C or Go or whatever language people are currently recommending. Fortunately, PHP is more than capable of producing command line apps for use in Linux or macOS.
In this tutorial, I’ll explain:
As a minimum, you should be able to use these concepts and techniques to develop your own simple command line applications, in your language of choice.
I’ll be using excerpts from my program, lingth, to demonstrate these concepts. (You might want to have the source code open alongside this article as you read it.)
Lingth reports on lines that are longer than a certain number of characters. It’s useful for keeping to coding standards which, for example, specify an 80-character maximum.
By default, lingth reports lines longer than 80 characters. It prints line number, line, & length.
It’s simple enough to quickly understand, but complex enough to demonstrate several features of a command line program, including:
In addition, I’ll cover the inclusion of a man page and how to install everything.
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