Invalid parameter number: number of bound variables does not match number of tokens

	$criteria = new CDbCriteria();
  	$criteria->addCondition("customid = :customid");
  	$criteria->params= array(':customid'=>$customid);
  	if(trim($groupid)!=""){
  		$criteria->addCondition ('groupid' = :groupid);

<pre name="code" class="php"><span style="white-space:pre">		</span>$criteria->params= array(':groupid'=>$groupid);

<span style="white-space:pre">	</span>}

<span style="white-space:pre">	</span>

} When

wrote the query operation of the Yii framework, he kept reporting an error using CDbCriteria:

Invalid parameter number: number of bound variables does not match number of tokens.

This error means that the conditions you query do not match the number of parameters;

If you look at my code above with confidence, you will find something to the effect It's wrong. If I meet the conditions of goupid, then in the end I will have only one parameter, which is: goupid, and all the parameters: customid =$customid will be overwritten, so the solution is to do it in the goupid conditional statement. Change:

$criteria->params= array(':customid'=>$customid,':groupid'=>$groupid);

Or it would be better to write it this way:

<span style="white-space:pre">	</span>$criteria = new CDbCriteria();
  	$criteria->addCondition("customid = :customid");
  	$criteria->params[':customid'] = $customid;
  	if(trim($groupid)!=""){
  		$criteria->addCondition ("groupid = :groupid");
  		$criteria->params[':groupid'] = $groupid;
  	}

The above introduces Invalid parameter number: number of bound variables does not match number of tokens, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.