If you’re working on an ecommerce shop, you may be frequently working with your site name as a string. For example, you might be building a custom url for a sitemap or building a url link for a specific function of your cart. Here’s a quick reference guide for some of the string manipulations you might need to do frequently.
Remove the trailing slash from a domain name
Use rtrim. Here’s how:
rtrim($url_string,’/');
Remove the http or https from the start of a string
Use preg_replace. Here’s how:
preg_replace(“/^https?:\/\/(.+)$/i”,”\\1″, $url_string);
So combining the two above, to get just www.ecommerceaustralia.net.au from http://www.ecommereaustralia.net.au/ would be:
rtrim(preg_replace(“/^https?:\/\/(.+)$/i”,”\\1″,”http://ecommerceaustralia.net.au/”),’/');
Get the domain name from a string
You might want to get the domain name from a string, without any subfolders on it. For example, you might want to know what the domain name for the string http://www.ecommerceaustralia.net.au/blog/general (or if you had a subdomain http://subdomain.yourdomain.com.au for example). Here’s how.
preg_replace(‘/^www\./i’,”,$_SERVER['HTTP_HOST']);
