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  1. <?php
  2. function comb($arr, $n = NULL, $partial = '') 
  3. {
  4.   $var = array();
  5.  
  6.   if (is_string($arr)) 
  7.   {
  8.     $arr = str_split($arr);
  9.   }
  10.  
  11.   if ($n === NULL) 
  12.   { 
  13.     $n = count($arr); 
  14.   }
  15.  
  16.   if ($n == 0) 
  17.   {
  18.     $var[] = $arr);
  19.     return $var;
  20.   }
  21.  
  22.   else 
  23.   {
  24.     foreach ($arr as $value)
  25.     {
  26.       comb($arr, $n-1, $partial.$value);
  27.     }
  28.   }
  29. }
  30.  
  31. $combs = comb('abc');
  32.  
  33.  
  34. ?>
Runtime error #stdin #stdout 0.02s 13616KB
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stdin
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Standard input is empty
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Parse error: syntax error, unexpected ')' in /home/PGwLae/prog.php on line 18
https://ideone.com/PPRNh
language:
PHP (php 7.3.5)
created:
13 years ago
visibility:
public

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