Parsing command line parameters

The recipe Building and running a shell showed us how to create a shell that adds records based on user-provided information. This recipe adds support to import accounts from a CSV file, while allowing the user to configure different settings through the use of command-line parameters.

Getting ready

To go through this recipe we need the user shell implemented. Follow the entire recipe Building and running a shell.

We will also need a sample CSV file from which to import records. Create a file named users.csv and place it in a directory of your choice (for example, in the application's app/tmp directory) with the following contents:

"john","John","Doe"
"jane","Jane","Doe"
"mark","Mark","Doe"
"mathew","Mathew","Doe"
"peter","Peter","Doe"
"roland","Roland","Doe"

How to do it...

1. 1. Edit your app/vendors/shells/user.php file, and change the name of the method main() to add().

2. 2. Add the following method right below the add() method:

   public function help() {
   $this...