code/subst.inc.php


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<?PHP
 if(!defined('SUBST_INC')) {
    define('SUBST_INC', 1);
    
    function Subst($string, $subst = array()) {
      $tr['$$'] = '$';
      
      while(current($subst)) {
        $tr['$' . key($subst)] = $subst[key($subst)];
        
        next($subst);
      }
      
      return strtr($string, $tr);
    }
  }
?>