void changeRule (string old rule name , string new rule name)This method allows you to change one rule to another in the same place in the rule set.For example, say you have three rules in your rule set …

• rule1
• rule2
• rule3… and you no longer want to use rule2; instead, you want rule4 to go there instead:

   
  $wiki->changeRule('rule2', 'rule4');

  Now your rule set looks like this:

• rule1
• rule4 ←- changed from rule2
• rule3