Installing PHP Trader Extension

Hi there I’m trying to install a PHP Extension and am having trouble. The Extension is here: .

How do i install via terminal?

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Do these instructions still apply in Jan 2018?

I am really thinking about the php5-dev


This package is handled by PECL. To install it you can…

sudo apt-get update
sudo apt-get install php-pear php5-dev 
pear install trader