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  1. <?php
  2.  
  3.     $aPathes = array(
  4.         '/a/b',
  5.         '/a',
  6.         '/1/2/3/4',
  7.         '/1/2',
  8.         '/1/2/3/5',
  9.         '/a/b/c/d/e'
  10.     );
  11.  
  12.     $aUsed = array();
  13.     foreach ($aPathes as $sPath) {
  14.         foreach ($aUsed as $iIndex => $sUsed) {
  15.             if (substr($sUsed, 0, strlen($sPath)) == $sPath || substr($sPath, 0, strlen($sUsed)) == $sUsed) {
  16.                 if (strlen($sUsed) < strlen($sPath)) {
  17.                     array_splice($aUsed, $iIndex, 1);
  18.                     $aUsed[] = $sPath;
  19.                 }
  20.                 continue 2;
  21.             }
  22.         }
  23.         $aUsed[] = $sPath;
  24.     }
  25.  
  26.     var_dump($aUsed);
Success #stdin #stdout 0.02s 13112KB
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stdin
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Standard input is empty
stdout
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array(3) {
  [0]=>
  string(8) "/1/2/3/4"
  [1]=>
  string(8) "/1/2/3/5"
  [2]=>
  string(10) "/a/b/c/d/e"
}
https://ideone.com/jxR9w
language:
PHP (php 7.3.5)
created:
13 years ago
visibility:
public

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