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Get relative path to root folder

/ Published in: PHP
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  1. function rel_path($root=NULL) {
  2. 	// Get script name if exists
  3. 	$cur_file = $_SERVER["SCRIPT_NAME"];
  4.     $cur_file = explode('/', $cur_file);
  5.     $cur_file = $cur_file[count($cur_file) - 1];
  6. 	// Remove script name
  7. 	$tmp = str_replace($cur_file, "", $tmp);
  8. 	// Split at specified root folder
  9. 	if($root != NULL) {
  10. 		$tmp = split($root, $_SERVER['REQUEST_URI']);
  11. 		$tmp = $tmp[1];
  12. 	}
  13. 	// Make windows-friendly
  14.     $tmp = str_replace('\\', '/', $tmp);
  15. 	// Create path array
  16.     $tmp = explode('/', $tmp);
  17.  
  18.     $rel_path = NULL;        
  19.     for ($i = 0; $i < count($tmp); $i++) {
  20.         if ($tmp[$i] != '') {
  21.             $rel_path .= '../';
  22. 		}
  23.     }
  24.  
  25.     if ($rel_path != NULL) { 
  26. 		$rel_path = substr($rel_path, 0, -1); 
  27. 	} else { 
  28. 		$rel_path = '.'; 
  29. 	}
  30.  
  31.     return $rel_path;
  32. }

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