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Strip URL to domain name

/ Published in: PHP
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Alternative to
[http://snipplr.com/view/12616/strip-url-to-its-domain-name/](http://snipplr.com/view/12616/strip-url-to-its-domain-name/, "this snippet"), as it didn't come out clearly in the comments.

Update - Edited based on gdvickery's comment - thanks!

Also added a test case so people can see how it works.

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Copy this code and paste it in your HTML 
  1. <?
  2.  
  3. $url[0] = " http://www.google.com/test "; 
  4. $url[1] = "http://www.google.com/and"; 
  5. $url[2] = "http://web.google.com/bla"; 
  6. $url[3] = "http://google.com/go/"; 
  7. $url[4] = "www.google.com/jeep"; 
  8. $url[5] = "google.com/bam"; 
  9. $url[6] = "http://google.com/forget"; 
  10. $url[7] = "mail.google.com"; 
  11. $url[8] = "google.co.in"; 
  12. $url[9] = "http://google.co.uk"; 
  13. $url[10] = "http://mail.google.co.uk"; 
  14. $url[11] = "google.co.uk/"; 
  15. $url[12] = "http://mail.google.co.uk/";
  16.  
  17. foreach ( $url as $u ) { 
  18. 	 echo stripit($u)."<br>"; 
  19. }
  20.  
  21.  
  22. /*** this is the stripit function for you copy/pasters out there ***/
  23. function stripit ( $url ) { 
  24.    $url = trim($url);
  25.    $url = preg_replace("/^(http:\/\/)*(www.)*/is", "", $url); 
  26.    $url = preg_replace("/\/.*$/is" , "" ,$url); 
  27.    return $url; 
  28. }
  29. ?>

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