User Gen

composer.json

{
    "require": {
        "nubs/random-name-generator": "^2.0"
    }
}

usergen.php

<?php

require_once 'vendor/autoload.php';

class UserGen {

    private $nameGenerator;

    private $jobRoles = [
        'Development',
        'Planning',
        'Selling',
        'Support',
        'Testing'
    ];

    private $workgroups = [
        'Back End Developers',
        'Front End Developers',
        'Testers',
        'Support',
        'Project Management',
        'Business Management',
        'Sales'
    ];

    public function generateUsers($number)
    {
        //https://github.com/nubs/random-name-generator
        $this->nameGenerator = \Nubs\RandomNameGenerator\All::create();

        $outPutFile = fopen("output.csv", "w") or die("Unable to open file!");

        fwrite($outPutFile, "Status,First name,Last name,Employee ID,Primary workgroup,Contributing workgroup,Email address,Primary job role,Other job roles,Use Reviews,Default reviewer employee ID,Start date,Leaving date,Timezone,Advanced user,Have you ever had PPI?,Checkbox\n");

        for ($i=0; $i<$number; $i++) {

            $line = $this->generateUser($i);

            fwrite($outPutFile, $line."\n");
        }

        fclose($outPutFile);
    }

    private function generateUser($id)
    {
        $line = '';

        $name = explode(' ',str_replace([",","'"], " ", $this->nameGenerator->getName()), 2);

        //Status
        $line .= '1,';
        //First Name
        $line .= $name[0] . ',';
        //Last Name
        $line .= $name[1] . ',';
        //Employee ID
        $line .= 'employee'. $id . ',';
        //Primary workgroup
        $line .= $this->workgroups[rand(0,count($this->workgroups)-1)] . ',';
        //Contributing workgroup
        $line .= '' . ',';
        //Email address
        $line .= 'employee'. $id . '@simitive.com.notanemail,';
        //Primary job role
        $line .= $this->jobRoles[rand(0,count($this->jobRoles)-1)] . ',';
        //Other job roles
        $line .= '' . ',';
        //Use Reviews
        $line .= '1' . ',';
        //Default reviewer employee ID
        $line .= '' . ',';
        //Start date
        $line .= '01/11/2016' . ',';
        //Leaving date
        $line .= '' . ',';
        //Timezone
        $line .= 'Europe/London' . ',';
        //Advanced user
        $line .= '' . ',';
        //Have you ever had PPI?
        $line .= 'No' . ',';
        //Checkbox
        $line .= '1';

        return $line;
    }
}

if (php_sapi_name() == 'cli') {
    $userGen = new UserGen();
    echo $userGen->generateUsers($argv[1]);
}

This can be run with 'php userGen.php 100'