gistfile1.txt

<?php

$key = $_SERVER['argv'][1];
$domain = $_SERVER['argv'][2];

$path = "/Users/adrian/test/" . $key;
if (!is_dir($path)) {
  mkdir($path);
}
$pass = 'pass';

// generate a key
$cmd[] = sprintf('openssl genrsa -passout pass:%s -des3 -out %s/openssl.key.orig 1024', $pass, $path);

// unsign it
$cmd[] = sprintf('openssl rsa -passin pass:%s -in %s/openssl.key.orig -out %s/openssl.key', $pass, $path, $path);

$input = "/C=za/CN=$domain/OU=$domain/emailAddress=admin@$domain";

// Generate the CSR
$cmd[] = sprintf("openssl req -new -subj '%s' -key %s/openssl.key -out %s/openssl.csr -batch", $input, $path, $path);

$cmd[] = sprintf("openssl x509 -req -days 365 -in %s/openssl.csr -signkey %s/openssl.key  -out %s/openssl.crt", $path, $path, $path);

foreach ($cmd as $command) {
  echo $command . "\n";
  system($command);
}