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  1. <?php
  2. function clean($full_url){
  3.     $parts = explode('//', $full_url, 2);
  4.     $parts[1] = rtrim(preg_replace('@/+@', '/', $parts[1]), '/');
  5.     $full_url = implode('//', $parts);
  6.     return $full_url;
  7. }
  8.  
  9. $urls = array( 'http://stackoverflow.com/questions/13990256/remove-duplicate-trailing-slashes/',
  10.  'http://stackoverflow.com/questions/13990256/remove-duplicate-trailing-slashes////',
  11.  'http://stackoverflow.com///questions///13990256///remove-duplicate-trailing-slashes////',
  12.  'http://stackoverflow.com/questions//13990256/remove-duplicate-trailing-slashes//');
  13.  
  14.  foreach($urls as $url){
  15.      echo "Before: $url\nAfter:  ".clean($url)."\n---------------------\n";
  16.  }
  17.  ?>
Success #stdin #stdout 0.02s 13064KB
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stdin
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Standard input is empty
stdout
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Before: http://stackoverflow.com/questions/13990256/remove-duplicate-trailing-slashes/
After:  http://stackoverflow.com/questions/13990256/remove-duplicate-trailing-slashes
---------------------
Before: http://stackoverflow.com/questions/13990256/remove-duplicate-trailing-slashes////
After:  http://stackoverflow.com/questions/13990256/remove-duplicate-trailing-slashes
---------------------
Before: http://stackoverflow.com///questions///13990256///remove-duplicate-trailing-slashes////
After:  http://stackoverflow.com/questions/13990256/remove-duplicate-trailing-slashes
---------------------
Before: http://stackoverflow.com/questions//13990256/remove-duplicate-trailing-slashes//
After:  http://stackoverflow.com/questions/13990256/remove-duplicate-trailing-slashes
---------------------
https://ideone.com/1qHR9o
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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