How to find all php-pear usages in a PHP project?

Question

We are having this large PHP Project. There is php-pear installed, via

apt-get install

We got no clue for what we needed that for.

Now we need to find out if any PEAR-related class/method/function is in use in the PHP project.

Thing is, as I mentioned, it's a huge project and I joined the project a year ago, that's why I got no clue how many of the features that come with the apt-get packages are in use.

Used IDE is PhpStorm, just in case, there is a feature to accomplish this.

So if there's any command we could use on the Linux shell or anything we could do on PhpStorm, I'd be grateful for any hint.

Answer 1

1. Find out which pear packages have been installed with pear list
2. Search for classes beginning with the package name, eg XML_Util (In PEAR, all classes must be prefixed with the package name).