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Get-domain-name.md

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+I needed to get the domain name only based on the base_url() function.
+I added the following function to the url_helper.php :
+
+/**
+ * Get domain
+ *
+ * Return the domain name only based on the "base_url" item from your config file.
+ *
+ * @access    public
+ * @return    string
+ */    
+
+function getDomain()
+{
+    $CI =& get_instance();
+    return preg_replace("/^[\w]{2,6}:\/\/([\w\d\.\-]+).*$/","$1", $CI->config->slash_item('base_url'));
+}
+
+So you can use it in your code in the same manner than site_url() or base_url()
+
+Hope this help somebody !