yii\db\QueryInterface::exists PHP Method

QueryInterface Interface Documentation Show file Open project: yiisoft/yii2

exists() public method

Returns a value indicating whether the query result contains any row of data.
public exists ( Connection $db = null ) : boolean
$db Connection the database connection used to execute the query. If this parameter is not given, the `db` application component will be used.
return boolean whether the query result contains any row of data. 
    public function exists($db = null);
QueryInterface
addOrderBy
all
andFilterWhere
andWhere
count
emulateExecution
exists
filterWhere
indexBy
limit
offset
one
orFilterWhere
orWhere
orderBy
where