just create subdomain

create.php

<?php


echo 'Name of domain: ';
$app = trim(fgets(STDIN));

mkdir("/Users/janmochnak/Sites/$app.dev");
mkdir("/Users/janmochnak/Sites/$app.dev/logs");
mkdir("/Users/janmochnak/Sites/$app.dev/public");

system("chown -R janmochnak:_www /Users/janmochnak/Sites/$app.dev");

$conf = "# generated
<Directory \"/Users/janmochnak/Sites/$app.dev\">
  Options Indexes MultiViews
	AllowOverride All
	Order allow,deny
	Allow from all
</Directory>

<VirtualHost *:80>
    ServerAdmin admin@localhost
    DocumentRoot \"/Users/janmochnak/Sites/$app.dev/public\"
    ServerName $app.dev
    ServerAlias www.$app.dev
    ErrorLog \"/Users/janmochnak/Sites/$app.dev/logs/error.log\"
    CustomLog \"/Users/janmochnak/Sites/$app.dev/logs/custom.log\" common
</VirtualHost>";

file_put_contents('/private/etc/apache2/other/'.$app.'-dev.conf', $conf);

$hosts = fopen('/etc/hosts', 'a');
fwrite($hosts, '127.0.0.1 '.$app.'.dev'."\n");
fclose($hosts);

system("apachectl restart");