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Remove empty items from a multidimensional array in PHP

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  1. <?
  2. function array_non_empty_items($input) {
  3.     // If it is an element, then just return it
  4.     if (!is_array($input)) {
  5.       return $input;
  6.     }
  7.  
  8.     $non_empty_items = array();
  9.  
  10.     foreach ($input as $key => $value) {
  11.       // Ignore empty cells
  12.       if($value) {
  13.         // Use recursion to evaluate cells
  14.         $non_empty_items[$key] = array_non_empty_items($value);
  15.       }
  16.     }
  17.  
  18.     // Finally return the array without empty items
  19.     return $non_empty_items;
  20.   }
  21.  
  22.   ?>

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