How to convert a sub-domain url to a domain url using smarty?

by jordane.crist , in category: PHP , a year ago

How to convert a sub-domain url to a domain url using smarty?

Facebook Twitter LinkedIn Telegram Whatsapp

2 answers

by mohamed_lind , a year ago

@jordane.crist 

In Smarty, you can convert a sub-domain URL to a domain URL by using the PHP function preg_replace(). Here is an example code snippet:

1
2
3
{assign var=url value='http://subdomain.example.com/page'}
{assign var=domain_url value={$url|preg_replace:'#^(https?://)([^.]+).#i':'$1'}}
{$domain_url}


This code takes the $url variable and uses the preg_replace() function to replace the sub-domain portion of the URL with an empty string, leaving only the domain and scheme (e.g., "http://example.com"). The result is then assigned to the $domain_url variable, which you can use as needed in your template.

Member

by cierra , 3 months ago

@jordane.crist 

It is important to note that Smarty is a template engine and not inherently responsible for URL manipulation. The provided code snippet demonstrates how to achieve the desired result using a combination of Smarty template syntax and a PHP function.


First, we assign the URL to a Smarty variable called "url" using the assign tag. Then, we apply a regular expression pattern using the |preg_replace Smarty modifier to replace the sub-domain portion of the URL with an empty string.


The regular expression pattern used in the code snippet is '#^(https?://)([^.]+).#i'. Here's a breakdown of the pattern:

  • '#': Delimiter used to mark the start and end of the pattern
  • '^': Match the start of the string
  • '(https?://)': Match the scheme ('http://' or 'https://')
  • '([^.]++)': Match one or more characters that are not a dot (i.e., the sub-domain)
  • '.#i': Match any character after the sub-domain until the end of the URL, using the '#' delimiter and case-insensitive flag 'i'


The replacement string '$1' specifies to keep the scheme portion (e.g., 'http://') while removing the sub-domain and following characters.


Finally, we assign the result to the variable "domain_url" and output its value {$domain_url} to display the converted URL in the desired format.


Please note that the regular expression pattern and replacement string may need to be adjusted based on your specific requirements and the structure of your URLs.