GNU/Linux Kali Installing PECL – Step by step Guide
How to Install PHP PECL on Kali GNU/Linux desktops – Step by step Tutorials.
And PECL for Kali (PHP Extension Community Library) is a Repository of Extensions for the PHP programming language.

1. Launching Terminal
Kali GNU/Linux Terminal Tutorial for Beginners
And update the Kali Apt Repos:sudo apt update
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.
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